What is an email subject line?

An email subject line is a brief description that summarizes the content or purpose of an email. It's like a message header, giving recipients a preview of what to expect inside. You need great email subject lines to increase the chances of your email being opened.

What should be put in the subject line of an email?

In the subject line of an email, you should put a concise summary or description of the email's content or purpose. It helps recipients understand what the email is about before opening it.

How long should an email subject line be?

Length definitely plays a huge role in email optimization strategies. Effective email titles should ideally be around 6 to 10 words or 40 to 60 characters in length. This ensures it's concise and can be easily read on various devices without being cut off.

200+ Best Email Subject Lines That Get Opened

Why Email Subject Lines Matter More Than Ever

It's not merely about having good email subject lines; it's about having the best email marketing subject lines. And believe us when we say that one good subject line can change the course of your campaign.

Do you know that a well-placed emoji in your subject line can increase chances of an email being opened by over 50%? Or that personalized emails that address the recipient have 22% better chances of being opened? And we haven't even started talking about symbols and other game-changing must-knows…

To get you started, we have plenty of great email subject lines for various industries and occasions prepared for you today.",

Top 20 Highest-Performing Email Subject Lines

Being the email marketing specialists that we are, it’s only natural that we’ve sifted through countless options to bring you the very best when it comes to high-performing email subject lines. Behold!

Universal High Performers

Time for a [Brand] treat!

Last call for savings

Shop our customer's faves

Free [Freebie] awaits you!

Don't miss out on [Brand] deals!

Get your hands on [Freebie] now!

Meet [Product]: Your new BFF

New Year, new goodies!

Welcome to [Brand]'s new site!

[First Name], it's happening soon!

Industry-Agnostic Winners

Missed something special? Your cart is still here

Tell us about your [Product] experience

Surprise inside 👀

The secret is finally out

Big news just dropped 🥳

Did you see this yet?

Act fast! Limited spots available just for you

Hello from [Brand]—here's our story

Your new favorite brand is here

Last chance — doors close tonight

Psychology-Based Email Subject Lines

Take a moment to read the latest marketing emails in your inbox. How did each one make you feel? Did it create a sense of urgency or spark your curiosity? Whether we realize it or not, every subject line is psychologically charged—and this is a valuable tool in email marketing.

Curiosity, urgency, FOMO, and the thrill of discovery are psychological triggers that can turn your subject lines from forgettable to irresistible. By understanding basic psychology, you can tap into what naturally motivates your audience. At the end of the day, it’s about connecting with their emotions and behaviors so your emails feel more relevant and rewarding for both sides.

FOMO (Fear of Missing Out) Subject Lines

Whether it’s the latest trend everyone is raving about or a once-in-a-lifetime opportunity, nobody wants to be left behind. This is the core tenet that makes FOMO such a powerful driving force in marketing—you can spark urgency in subject lines through countdown timers and limited-time offers.

Now, you have a couple of seconds to catch recipients' attention. What’s a better way to do that than sparking a little FOMO?

Time-Based Urgency

Fear sells when time is running out. There are plenty of ways to create FOMO, but time is the easiest and most relatable trigger. So, reminding people that the opportunity is slipping away makes them act fast.

[Brand Name]: Last 24 hrs for 30% OFF

Grab your 10% OFF before it expires

Exclusive VIP-only deal ends in 24 hrs

Special bundle offer ends in 12 hrs

FREE shipping. No minimum. 24 hrs only

Ends tonight: Your exclusive 30% OFF

[Course Name]: Last day to enroll

[First Name], want 40% off? It's now or never

Reminder: Our MEGA SALE ends in 12 hrs

[Brand Name]: 75% off today only

Your VIP discount ends in 48 hrs

24-hr Flash SALE: Up to 30% OFF

Final call: 25% off ends at midnight

Last call to checkout with 10% OFF

Your cart contents will be emptied in 4 hrs

Scarcity-Based FOMO

When you learn that something is being cleared away fast, you know there's a reason for it. And that's why scarcity-based FOMO email headers work, leading to 22% higher open rate: if everyone is getting it, you simply have to have it too.

[Event Name]: Only 10 spots left

Prebook [Product Name] now for 20% less

Only 15 VIP seats remain

FREE shipping for the 1st 500 orders

[Product Name]: Only 5 left at this price!

[Product Name]: Only 7 pieces remain

[Brand Name]: Grab your size before it's gone

Special early bird pricing for [Product Name]

Hurry! Last 10 items at 30% less

[Event Name]: Claim your spot for $27

[Product Name]: Almost sold out!

[Product Name]: Get your limited edition now!

[Topic] Masterclass: Last 9 seats left

[Product Name]: Last chance to get yours

First 10 orders get extra 10%

More FOMO subject lines

Curiosity Gap Subject Lines

People are born with an innate curiosity to explore the unknown—doesn’t matter whether it’s to find out where a new Netflix series might take them or what exact discount that subject line was teasing. Knowing that there’s more to the story than just the subject line is a time-tested way to compel them into opening your emails.

Question-Based Curiosity

The subject line makes all the difference—especially when you’re asking a question. According to a recent research, question-based subject lines hit a 46% open rate, outperforming all other types. Whether you’re trying to show urgency, set up a meeting, or spark interest in an event, the right question can compel recipients to open your email. Now, do you want to find out how effective it is?

Dare to take up our challenge?

How to become a VIP for free?

Got a question for you

Mind taking a look [First Name]?

Guess what you won [First Name]?

What no one tells you about [Topic]

Ready, [First Name]?

Are we meeting tonight?

How to get our VIP tier for 25% less

Guess what’s brewing?

Ready to be amazed? Here’s [Product Name]

Guess what’s on its way to you?

Enter our online contest, [First Name]?

Where to ship your free gift?

How about a little surprise?

Incomplete Information

“I was just about to tell you the real reason why…” Why what? Incomplete information, just like a well-placed cliffhanger in a TV show, can drive us a little bit mad. After all, we’re all driven by curiosity. That said, getting half of the story from a headline or a subject line, it’s only natural that recipients will want to get the full picture by seeing what’s inside—just be aware that not every person in your audience appreciates being clickbaited.

[Business Name]: Unveiling our secret launch

[Brand Name]: Massive announcement coming soon

[Brand Name]: Stay tuned for a big reveal

Prepare to be truly wowed, [First Name]

[First Name], we’ve got something BIG

You’ll never guess what we got lined up

[Brand Name]: Unveiling our next big thing

Our special offer to be revealed in 2 days

10 Jaw-dropping deals to come

Next AMA: Guess who’s coming?

[Brand Name]: Mystery launch to be revealed soon

The hype is real, [First Name]

Your VIP access is coming up…

Can you guess what’s coming? Stay tuned!

Unlock the mystery – exciting news inside!

Personalization Subject Lines

It’s been proven that using email personalization, like someone’s first name when addressing them directly, is a powerful way to build a relationship. Placing it strategically can make me feel more engaged, more connected, and even motivated to take action—like opening an email.

Name-Based Personalization

According to Zippia, emails that include the recipient’s first name in the subject line can often increase the open rate by at least 50%. So, [Your name], what do you say about taking this strategy for a spin?

[First Name], unlock your discount!

Exclusive deal for [First Name]: don't miss out!

Hey [First Name], something special just for you!

[First Name], open for your VIP gift

[First Name], claim your special discount today!

[First Name], join the party for exclusive offers!

Exclusive for [First Name]: customized deals inside!

[First Name], wishlist items on sale now!

[First Name], one step away from exclusive access!

Hello [First Name], we missed you. Welcome back!

[First Name], your discount code is here. Enjoy!

[First Name], get ready for exciting news!

[First Name], your VIP membership awaits!

Claim your reward, [First Name]!

[First Name], discover your happiness inside!

Behavior-Based Personalization

Behavior-based personalized subject lines tap into what someone has already shown interest in. Think items they browsed, carts they abandoned, or products they purchased. By letting recipients feel like you’re addressing them directly about something only you and they know, it’s a surefire combo that always sticks the landing.

Time to restock, [First Name]?

Happy Birthday, [First Name]! 🎂

[First Name], here are fresh picks we think you’ll love

[First Name], your cart is waiting—checkout now and enjoy free shipping!

Still want this, [First Name]?

Get ready, [First Name]! Your package is on its way

Order success! [First Name], your purchase is being processed

[First Name], a warm welcome to you

[First Name], you're in for a treat!

Get started today, [First Name]

Pro tips tailored for [First Name]

It’s not the same without you, [First Name]! Come back!

Rolling out the red carpet for you, [First Name]!

We want you back, [First Name]! Exclusive deals await

[First Name], your favorites are still here

More personalized email subject lines

Social Proof Subject Lines

Showing numbers is more powerful than saying your product is popular. Just like having backing of user testimonials and industry experts is better than having none. Those are just some simple truths that don’t require a PhD in psychology to understand. Since abandoned carts are one of the biggest pain points in email marketing, including any form of social proof in your subject lines can help to recover lost sales. And that’s only the beginning. Social proof can also boost open rates, increase trust, and drive conversions in pretty much every type of email marketing campaign.

Numbers & Statistics

People love numbers—and we’re not talking only about math enthusiasts. According to recent research, adding numbers to subject lines boosts open rates by up to 57%. That’s because numbers are convincing. Keep in mind that people react differently to numbers and claims presented in words—just like people find odd numbers more authentic than even ones (although we’d recommend running an A/B test on that first).

3 Stats That Will Change Your Strategy

What 10,000+ Data Points Reveal About Your Industry

The 5 Numbers Every Marketer Needs

Unlock 7 Secrets to Boost Your Results

8 Out of 10 Marketers Say This Is the #1 Priority for 2025

This 10% Change Could Skyrocket Your Profits

The Truth Behind 98% of Industry Trends

98% of People Are Missing This Simple Trick—Are You?

Unlock the 7 Secrets That Could Boost Your Results by 50%

The 5 Numbers Every Business Owner Needs to Know

3 Stats That Will Change the Way You Think About Marketing

How One Metric Can Increase Your Sales by 300%

The Surprising Truth Behind These 4 Key Industry Stats

100+ Studies Prove This Strategy Works—Here’s Why

How a 10% Improvement Could Save You Thousands

Testimonial-Style

People care about user reviews because it shows credibility and helps to guide our choices. Research shows that products with customer reviews are far more trusted than those without—by a whopping 270%. So, when it comes to subject lines, a well-placed testimonial can boost those conversions.

Real [Brand] users share their thoughts

Discover why people choose [Product]

[First Name] loves [Product] – here's why

Real [Brand] users share their thoughts

[Product] receives glowing reviews

Hear what customers say about [Brand]

[First Name] recommends [Product]

Discover why people choose [Product]

5-star ratings for [Brand]

Real users, real stories: [Brand]

Hey [First Name], your opinion matters to us

Be a [Brand] superstar: share your experience!

Calling all [Product] fans - let's talk!

Join the [Brand] reviewer squad

Top picks that wow at [Brand]

More social proof email subject lines

Emotional Trigger Subject Lines

People make decisions based on emotions, not just logic. Curiosity-driven subject lines or ones that make the reader feel good about themselves tap into that emotional drive, increasing the chances they’ll open the email to see where that emotion will take them. It’s marketing psychology 101.

Positive Emotions

You know what’s better than a well-crafted subject line? A well-crafted subject line that leaves the recipient feeling good about themselves! Here are a couple of subject line templates to spread those good vibes:

Rewriting the rules: 30% off for you

Dive into adventure: 25% off special deal

Spark your inspiration: Save 20% today

Your time to shine, take FREE shipping!

Conquer your destiny, one deal at a time

Set the trend: Save 30% this week

Choose to shine: 35% off select items

Dream, design, save: FREE shipping today

Bold moves, Big discounts: 15% off now

Catch the Wave of Success: 25% Off Inside!

Unleash Your Potential: Exclusive Deals Await

Fuel Your Dreams: Don't Miss Out on 30% Off!

Be Bold, Be Brilliant: 20% Off Sitewide!

Empower Yourself: Unlock Exclusive Discounts

[Company Name] Presents: Your Ticket to Success!

Problem/Solution Emotions

A big part of psychology-driven subject lines that convert lies in understanding the pain points of your audience. By addressing a universal problem and showing that the solution lies in the same subject line, you create a certified two-punch combo.

Tired of high prices? Here’s your relief.

Struggling to find the right fit? We’ve got you covered.

Feeling stuck in a routine? Break free today.

Running out of time? Save hours with this.

Hard to choose? Let us simplify it for you.

Inbox overload? One email you’ll actually love.

Wish your week felt easier? Here’s how.

Can’t find what you’re looking for? Start here.

Missing out on savings? Not this time.

Stressed about gift shopping? Problem solved.

Tired of boring meals? Spice things up inside.

Not seeing results? Unlock your next breakthrough.

Struggling with focus? This could help.

Feeling uninspired? Get your spark back today.

Searching for answers? Find clarity here.

Funny email subject lines

Most people have a funny bone in them. It shouldn’t surprise anyone that 9 in 10 users prefer brands that are funny. And what better way to spark a conversation than with a chuckle? Now, chuckle through and pick your favorite funny subject line:

Out of coffee? We’ve got the cure

Closet full, nothing to wear? Fixed

Boring inbox? Fun starts here

Forgot a birthday? We’ve got your back

Pants too tight? Stretch into these

Hungry again? Snacks to the rescue

Alarm clocks hurt? Coffee heals

Dog’s toys tragic? Royal upgrades inside

Lonely cart? Let’s fill it with joy

Not to be dramatic, but your life might improve after reading this

Socks gone missing? We’ve got pairs

Vacation FOMO? Escape with us

Lunch is sad? Spice it up today

Burnt dinner? Delivery saves the day

Tired inbox? Here’s your wake-up

More funny email subject lines

Catchy email subject lines

Crafting attention-grabbing headlines is crucial in today's digital landscape. From marketing emails to personal messages, catchy subject lines, titles, headers, and taglines play a vital role in engaging your audience and elevating your email game. Here’s a couple of fool-proof subject lines that will catch your audience’s attention:

Discover what’s inside – open to explore more

Your journey begins now – join the adventure!

Take the leap – seize this moment today!

Unlock success with your step-by-step guide

Drive powerful results with our solutions

Scale your success effortlessly – discover how!

Inside this month’s edition: discover & explore

Uncover the latest trends & insights

Ignite your passion: find your spark

Your solution awaits: let’s chat today

Ready to take your business to new heights?

Special update just for you – open to see!

Ready to level up? Let’s make it happen!

Countdown is on – unlock exclusive savings

Uncover something exciting – open for more

More catchy email subject lines

Industry-Specific Email Subject lines

From retail to travel and hospitality, or more niche ones like subscription boxes, there are dozens of industries email marketing caters to. Since each one of them comes with its own unique challenges and expectations, you can’t go with ‘limited-time offers’ for property listing subject lines, right? Now, let’s break it down industry by industry.

E-commerce & Retail

Email marketing is the backbone for ecommerce businesses. It provides a direct, cost-effective, and highly effective way to drive sales, build customer loyalty, and nurture relationships—without being influenced by almighty algorithms.

Both in retail and ecommerce, email marketing automation and segmentation can lead to a 320% increase in revenue, not to mention the 50% click-through rate. But it all starts with ecommerce email subjects that capture attention and compel customers to engage with your offers.

Now, let’s break down the most popular categories.

More ecommerce email subject lines

Product-Focused

Product-focused emails, as the name suggests, announce new products or exclusive deals. The appeal of these subject lines is knowing your audience and their needs—get it right, and you're halfway into getting that sweet sweet conversion.

Make sure to highlight how the announced product will benefit the recipient and pique curiosity by making the recipient wonder what’s inside—or use one from our list to get the ball rolling!

Meet [Product Name]: your new must-have

Unlock [Benefit] Today!

Your new obsession: [Product Name]

Ready for [Result]? [Product Name]!

Meet Your New [Product Name]!

Transform [Task] with [Product Name]!

Experience [Benefit] Now!

The Future of [Industry] is Here!

Get [Product Name] – Fast!

Your wish, our command: [Product Name]

Simplify Your [Task] Today!

[Product Name]: Your Secret Weapon!

Power Up with [Product Name]!

Ready for a Change? [Product Name]!

Level Up with [Product Name]!

More product update email subject lines

Promotional email subject lines

Promotional emails are tricky. On one hand, you want to lure in the recipient with a juicy promotion. On the other hand, the line that separates promotional email from one that looks spammy is as thin as a rake.

That’s why around 79% of users ignore or delete promotional emails, leaving email marketers trying out new subject line formulas. That said, here are some time-tested promotional email titles that should do the trick:

Weekend Sale: Countdown Begins

[Season] Clearance Sale: 30% OFF

For VIP members: 40% OFF!

Gear up for the weekend SALE, [First Name]

Get 50% off everything! (24 hrs only)

Free Shipping! Only today, hurry!

Upgrade with 20% OFF!

Time's running out: Get [Product/Service] with 20% Off

Shhh... Secret sale for VIPs...

Our Biggest Sale EVER (Ends in 3 hrs)

BOGO Sale in 3...2...1...

You’re invited to the SALE, [First Name]

25% OFF Sale (Extra 10% for early birds)

30% OFF till stocks last, hurry!

New In: First 100 get 20% OFF

Exclusive Deal: 40% Off for VIPs

Cart Abandonment & Re-engagement

Ecommerce stores suffer the most from abandoned carts, with over 70% of mobile users leaving their almost-purchases to gather dust. It’s like a digital wildfire that’s impossible to put out completely.

The good news is that with automated email sequences and well-crafted subject lines (with discounts sprinkled on top) you can lure in users back. In fact, more than 40% of cart abandonment emails are opened. Do you want to give it a try?

Hey there! Your cart misses you—come back!

Oops! You left something behind—retrieve it now

Almost there, [First Name]! Your cart awaits

Your cart = your savings! 22% off awaits you

[First Name], don't let this slip away—final call!

Last call to complete your cart—act now!

Your cart revival party—Join Us!

Still thinking about your items? Check your cart!

Still interested? Your cart is waiting for you!

We’re holding [First Name]’s cart for you—come back!

We saved your cart for you—come back soon

Hurry! Your items are selling fast!

Still shopping? Your cart is waiting!

We saved your cart – it’s missing you!

Your cart is packed and ready to go!

Abandonment issues? Your cart needs you!

More abandoned cart email subject lines

SaaS & Technology

Around 95% of businesses have implemented SaaS solutions in their operations. This means that email marketing has become a non-negotiable tool for engaging and nurturing customers.

From welcoming them on board to letting subscribers know about new products and price changes, running a modern tech business without email automation is like operating a car with no engine.

Trial & Onboarding

Offering trial access and guiding users through a seamless onboarding process is a key reason people sign up for your service. Welcome emails, an important element in the onboarding process, enjoy open rates of 60%—the same goes for subject lines that offer a trial deal that’s hard to say ‘no’ to.

Start Your Free Trial of [Product Name] – No Credit Card Required!

Your [Product Name] Trial Starts Now – Let’s Dive In!

Ready to Try [Product Name]? Get Started with a Free Trial Today!

Unlock Full Access to [Product Name] for 14 Days – Start Now!

Experience [Product Name] for Free – No Strings Attached!

Your [Product Name] Trial is Waiting – Start Exploring Today!

Get the Most Out of Your [Product Name] Free Trial – Here’s How!

Jump In! Your Free Trial of [Product Name] Is Ready

Welcome to [Product Name] – Let’s Get You Set Up!

Start Your Journey with [Product Name] – Your Onboarding Guide Inside

Ready to Get Started? Here’s How to Set Up Your [Product Name] Account

Welcome Aboard! Here's Your First Step to Mastering [Product Name]

Let’s Get You Up and Running – [Product Name] Onboarding Starts Here!

You’re Almost There – Complete Your Onboarding Today!

Your [Product Name] Setup Is Simple – Let’s Walk You Through It

More onboarding email subject lines

Feature Updates & Product News

Being the first to know about feature updates and new hot releases is one of the main reasons why users subscribe to your list. With 3 in 5 users agreeing that emails influence their purchase decisions, it’s clear that keeping your subscribers informed about these hot updates/releases is a smart move.

Discover something special today

Exciting new additions await you

Unveiling fresh delights for you

Your next obsession awaits

Introducing the latest surprises

[Product] you've been waiting for

A fresh look at [Product]

Your [First Name] exclusive preview

Fresh picks to brighten your day

New in town: [Brand]'s arrivals

Be the trendsetter you are

What's inside is a pleasant surprise

Fresh arrivals for the curious you

Could your new favorite be inside?

Hot drops alert!

Results & ROI

A great ROI email subject line captures attention, speaks to the recipient’s needs, and encourages them to open the email. It’s like a well-crafted invitation to see how well your brand is doing, and more importantly—what part users played in making it happen.

[Product Name]: Join the pre-order madness

[First name], your monthly performance dashboard is ready

Be the 1st to experience [Product Name]

How [Client] boosted [Metric] by [%] in [Time]

[Brand Name]: FREE upgrade to VIP

[Product Name]: Unlock a world of benefits

What makes [Product Name] better?

Your journey starts here, [First Name]

[Brand Name]: What’s trending this month

[Topic]: 6 Trends shaping our world

What no one tells you about [Topic]

Your ultimate guide to [Desired Outcome]

Achieve [Desired Outcome] now!

7 Strategies for [Desired Outcome]

Alert: Pricing plan change

B2B Services & Consulting

In the B2B world, effective communication is key to building lasting relationships, showcasing expertise, and driving sales. In fact, 63% of marketers say generating traffic and leads is their top challenge, with 4 in 5 admitting their lead generation efforts are only slightly or somewhat effective—and it often starts with the right subject line.

Whether you're networking, positioning yourself as a thought leader, or sending a proposal, crafting the perfect B2B subject line can make all the difference in capturing attention and achieving your business goals.

Let’s dive into some proven strategies.

Networking & Relationship Building

Not to get all LinkedIn-y on you, but networking isn’t just for social media and conference rooms—a big part of it happens in our emails, too. We’ve rounded up some subject lines that won’t scare off potential business partners, setting the stage for successful relationships.

Quick question about a mutual interest we share

Would you like to chat over coffee sometime?

Inspired by your work at [Event Name] – connect?

Excited to connect with a professional like you

How can I support your business growth?

Your insights needed on a specific topic

A mutual acquaintance recommended we connect

Fascinated by your recent project – let’s chat

Seeking your advice on a relevant topic

Ready to elevate our networks together?

Reaching out from [Your Company Name] to connect

Let’s discuss a shared interest over lunch

Found your profile intriguing – let’s connect

Collaboration opportunity – let’s brainstorm!

Connecting the dots – shared interests await

More networking email subject lines

Expertise & Thought Leadership

Thought leadership isn’t just about keynote speeches—it starts in your inbox. We’ve pulled together some expert-level subject lines that’ll grab attention the right way.

Proven Strategies for Success in [Industry]

Future Trends You Need to Know

Mastering [Industry Challenge]: Expert Advice

The Latest Thought Leadership from [Company Name]

How Top Performers Are Leading the Way

Expert Insights for Growing Your Business

Maximize Success with Industry Expertise

Transform Your Strategy with Expert Tips

Leading the Way in [Industry] Innovation

Exclusive Insights from [Industry] Thought Leaders

Building a Stronger Future: Expert Perspectives

Actionable Ideas from the Experts You Trust

Game-Changing Strategies for [Industry] Leaders

Inside the Mind of Industry Experts

Key Insights to Propel Your Business Forward

The Secret to Success in [Industry] – Expert Guide

Sales & Proposals

Picture this: you've crafted the perfect business proposal with meticulous detail. But the key to reaching your recipient lies in the sales email subject line. A strong sales proposal subject line should spark the recipient's interest without giving away the core of your idea.

Revolutionize your business: our proposal

Elevate your strategy today

Seize opportunity now

Let's make magic happen

Unlock growth: proposal inside

Igniting growth together

Your game-changing solution

Power up your business now

Transforming ideas into success

Discover your winning formula

Fuel your growth with our proposal

Ready, set, propose!

Ignite your success

Innovation awaits: act fast

Take the lead: proposal included

More email subject lines for sales

Healthcare & Wellness

Healthcare and wellness businesses wouldn't be the first that come to mind when you think of email marketing. But it's not only supplement and healthy snack brands that use email automation to reach their audiences, it's private clinics and healthcare providers, too.

Whether it’s appointment reminders or seasonal tips to monitor your nutrient intake, professionals in this sector (or dare we say, their assistants) also deal with occasional headaches that come with crafting compelling subject lines.

Well, here are some top-tier email subject lines as per doctor's orders:

Appointment & Care Management

Appointment & care management emails help users stay organized and supported. Clear, timely subject lines ensure reminders, updates, and instructions are seen—keeping schedules on track and care experiences smooth from start to finish.

Time to put yourself first 🌿

Your wellness check-in is waiting

A little self-care goes a long way

Ready for your next wellness boost?

Let’s get you feeling your best

Book your next wellness visit today

Don't forget your moment of calm

You deserve this reset

Wellness made easy—schedule now

Feeling off? Let’s fix that.

Your wellness journey continues here

Healthy habits start with one step

Take 30 seconds to book your zen

Your body will thank you

Time for a wellness refresh?

Health Education & Tips

Despite how much we don’t like being reminded about our wavering health—or should we dare say, potentially new diseases—medical experts use email marketing to spread the word about prevention and healthy living.

Engaging medically educational subject lines spark curiosity, encouraging readers to open, learn, and take simple steps toward healthier everyday habits.

Doctors' Advice: [Number] Health Tips for You

[First Name], Top Health Tips from Our Doctors

Expert Advice from Our Doctors on [Topic]

[Number] Health Secrets from Leading Doctors

Doctors Share [Number] Key Wellness Tips

Trust Our Doctors: [Number] Health Insights

[First Name], Doctors Recommend These Health Tips

Doctors' Corner: [Number] Essential Health Tips

[Number] Things Doctors Want You to Know

Get Expert Tips Straight from Our Doctors

Discover [Number] Health Tips from Experts

Doctors Reveal [Number] Must-Know Wellness Tips

Your Health Matters: [Number] Tips from Our Doctors

Stay Healthy with These [Number] Doctor-Approved Tips

[First Name], [Number] Ways to Improve Your Health Today

More email subject lines for healthcare

Financial Services

While financial services might not always be the first industry you associate with email marketing, the numbers don’t lie. 75% of financial services marketers consider email the most effective channel for reaching clients.

Account & Service Updates

From investment updates to important account notifications, getting the subject line just right can make all the difference. Use one of our time-tested email subject lines so that your message doesn’t get swallowed by a sea of promotional emails or worse—trigger spam filters.

Important Update: Changes to Your Account

Your Account Statement is Ready to View

Action Required: Account Verification Update

New Features Added to Your Account

Upcoming Changes to Your Billing Cycle

Service Maintenance Scheduled for This Weekend

Your Monthly Account Summary is Available

Security Update: Protecting Your Account

Reminder: Payment Due Date Approaching

We've Updated Our Terms & Conditions

Important: Update Your Payment Information

Your Recent Transaction Activity – Review Now

Account Alert: Balance Update Available

Update: New Fees or Charges to Review

Your Account Has Been Successfully Updated

Financial Planning & Advice

Financial planning & advice emails guide subscribers toward smarter money decisions. Strong subject lines highlight security, savings, and growth—encouraging readers to open, learn, and take confident steps toward financial stability and long-term success.

Let’s Plan Your Financial Future Together

Time to Review Your Investment Strategy

Maximize Your Savings with Expert Advice

Tailored Financial Plan Just for You

Start Planning for a Secure Retirement

Discover the Best Investment Options Today

Are You Ready to Meet Your Financial Goals?

Your Personalized Financial Plan Awaits

Get Expert Advice for Your Financial Growth

Smart Steps for Your Financial Success

Secure Your Future with Professional Planning

Take Control of Your Financial Future

Planning for Tomorrow? Let’s Start Today

Financial Tips to Help You Reach Your Goals

Unlock the Potential of Your Investments

Real Estate

In 2022, the average open rate for real estate emails increased to 21.7%, up from 14.66% in 2021, which is why more and more realtors worth their salt are using email marketing to boost their sales.

It’s hard to tell if the rise in open rates is due to the growing demand for a place to call 'home' or the continuous improvements in email marketing platforms. But one thing is clear—just like a masterful showing of a house can lead to a sale, so can a well-crafted email subject line lead to a potential client.

Property Listings & Alerts

Property listings & alerts emails connect eager buyers and renters to their next home or investment. Compelling subject lines highlight fresh opportunities, market updates, and must-see deals—enticing subscribers to click before the perfect property slips away.

Your dream home awaits [First Name]

Paradise on a budget [First Name]?

New listing alert for [First Name]

Property recommendations for [First Name]

Explore [Area Name], [First Name]

A great neighborhood for families [First Name]

A virtual tour of your future home?

Your search for a dream home ends here

Explore listings for [Area Name], [First Name]

Find your dream home with us [First Name]

Looking to invest smartly [First Name]?

The safest neighborhood in [Area Name]

Luxury living awaits you [First Name]

Your dream home on a budget [First Name]

Got a dream home checklist [First Name]?

Market Insights & Advice

Market shifts, housing prices, interest rates, who can keep track of all that? Real estate advice emails keep subscribers informed with trends, analysis, and expert guidance.

These subject lines that spotlight timely updates or actionable strategies spark curiosity—encouraging readers to open, learn, and make smarter, well-informed decisions.

The hottest real estate trends of 20XX

Just listed: Exclusive properties in [Area Name]

The 5 secrets realtors won't tell you

The scoop on your local neighborhood

Real estate: Insider secrets you must know

Our top real estate picks for the week

The art of smart real estate investing

5 tips for real estate investors

Be the first to know about new listings

Your real estate digest for [Month]

Exclusive listings in [Area Name]

Real estate kept simple [First Name]

Real estate news delivered to your inbox

Boost your real estate IQ with us [First Name]

Real estate wisdom at your fingertips

More real estate email subject lines

Campaign-Type Email Subject Lines

If you’ve been in email marketing for a while, you know that email campaigns are where the magic happens.

However, there’s no one-size-fits-all approach to campaign subject lines, as it pretty much covers everything from nurturing subscribers to driving sales, leads or boosting brand recognition.

In the following section, we'll break down the anatomy of different campaigns' subject lines, highlighting what works, what doesn’t, and how to tailor your approach to maximize engagement.

Welcome Email Subject Lines

Along with order confirmation and abandoned cart reminders, welcome emails are the bread and butter of email marketing. In fact, more than 70% of users expect a welcome email after subscribing to your listing, which explains why this type of campaign enjoys a whopping 91% open rate.

While the nature of welcome emails does half the job for you, remember that one lousy welcome email header can leave new users scratching their heads, regretting the decision to opt in. We’ll help make sure that won’t happen.

First Welcome Email

A great welcome email starts with a catchy subject line that grabs attention. Use these to get people excited and encourage new subscribers to jump in and check out what you’ve got to offer.

Welcome aboard! Let’s get started

Your onboarding journey begins here

[First Name], ready to dive in? Let’s go!

Step-by-step guide to get you started

[First Name], let's set you up for success!

Get the most out of your new account

Kickstart your journey with [Brand Name]

Joining hands with [Brand Name]—Welcome aboard!

Get ready for something amazing with [Brand Name]!

You're here! Let’s get started with [Brand Name]!

[Brand Name] says "Hello!"—We’re thrilled to have you!

[First Name], a warm welcome to the [Brand Name] family!

Ready to dive into [Brand Name]? Let’s explore!

[First Name], welcome aboard! Let’s make this exciting!

[First Name], it's all about you: Welcome to [Brand Name]!

More welcome email subject lines

Onboarding Sequence

Onboarding emails are a great way to make new users feel supported and confident. Depending on the industry, most users will be expecting an onboarding email that will set the course of the entire journey.

Make sure that the email subject line is clear and direct—we don’t want an onboarding sequence email to end up in the user's spam folder, do we?

Welcome to the [Brand] family, [First Name]!

[Product]: the secret ingredient to success

[First Name], it's time to unleash [Product]

Get ready to soar with [Brand]!

Dive into [Product] - your journey starts now

[Brand] welcomes [First Name]: let's innovate together

Unlock the potential of [Product], [First Name]

Discover [Brand]'s hidden treasures, [First Name]

[First Name], prepare to be amazed by [Product]

The ultimate [Product] experience awaits!

Ignite your imagination with [Brand], [First Name]

[Product] enthusiast? [Brand] welcomes you

[First Name], your [Brand] passport awaits!

[First Name]'s journey with [Product]

[First Name], prepare to be inspired by [Brand]

More onboarding email subject lines

Newsletter Subject Lines

Long before Substack or Mailchimp became household names, newsletters gained massive popularity when journalists began leaving traditional news outlets to write directly for subscribers. Today, almost every brand has its own newsletter, with 77% of B2B companies incorporating email marketing newsletters into their content strategy.

Since 90% of Americans are signed up for at least one newsletter, and 74% get them from up to 10 senders, your subject line has to shine above the rest. Below, we’ll dive into different types of newsletters and share some tips on creating email subject lines that grab attention and get more opens.

Content-Focused

Content-focused email subject lines are a great way to give subscribers a sneak peek into the valuable insights, stories, or updates waiting for them in your email. From thought-provoking reads to actionable takeaways, let your subject line hint at the content subscribers can expect, drawing them in to explore more.

Elevate your week ahead

This week's gems await

Weekly wins & wonders

All-new, all this week

Fresh picks await you

Weekly delights await

The latest buzz

Your weekly insider

This week's must-reads

Weekly roundup

New week, new discoveries

Discover fresh insights

Stay tuned for what's new

Fresh finds for your week ahead

Weekly favorites, freshly curated

Seasonal & Timely

Among many functions that newsletters serve, they’re great for letting subscribers know about seasonal changes or annual events that shouldn’t be missed. Whether it's a seasonal reminder to look after your immune system during the holiday season or The New Yorker’s annual Winter Season event calendar—let the subject line imply what’s inside the email.

Seasonal Trends You Can't Miss!

Your [Season] Update Is Here!

What’s New This [Season]?

Fresh Ideas for the [Season]

This [Season]: Must-See Updates!

Hot Topics for the Season!

Your [Season] Guide Inside!

Top Picks for [Season] Living!

The [Season] Newsletter Is Here!

Stay Updated: [Season] Highlights

Seasonal Insights Just for You!

Your Monthly [Season] Rundown!

Catch Up with Our [Season] Edition!

Seasonal Stories & Tips Inside!

[Season] News You Need to Know!

Sales & Promotional Campaigns

Sales emails are the driving force behind any successful promotional campaign. Whether you're offering a limited-time discount or promoting a new product, the right sales email subject line can make all the difference.

But even the best sales offer can be lost if the subject line doesn’t grab attention. While the content of your email is crucial, it’s the sales email subjects that will convince recipients to open and engage with your message.

Direct Sales Offers

Direct sales offer emails are built to spark action fast. Think of it as your make-or-break moment.

With clear, compelling subject lines, you can spotlight discounts, limited-time deals, or special promotions—driving urgency and motivating subscribers to click, shop, and save.

Limited Time: Save Big on Your Order!

Unlock Exclusive Deals Just for You!

Get 30% Off Your First Purchase Today!

Flash Sale: Shop Now and Save More!

Special Offer: Buy One, Get One Free!

Last Chance! Claim Your Discount Before It’s Gone!

Huge Savings on Your Favorite Products!

Exclusive Deal: 20% Off Just for You!

Act Fast: Limited Stock, Big Discounts!

Your Discount Awaits! Don’t Miss Out!

Unlock Your Secret Sale Now!

Save Big Before Time Runs Out!

Special Offer: Free Shipping on Orders Today!

Today Only: Save 15% on All Items!

Hurry! Limited-Time Offer Just for You!

Soft Sales Approach

Soft sales approach emails nurture trust before the pitch. Subject lines that feel helpful, conversational, and value-driven ease subscribers in—sparking engagement without the pressure of a hard sell.

Explore Our New Collection – Just For You

Discover Your Perfect Match Today

Curated Just For You – Shop Now

Find What You’ve Been Looking For

A Special Gift Awaits You Inside

Have You Seen Our Latest Arrivals?

We Thought You’d Love This

Your Wishlist Items Are Waiting

See What’s New – You’ll Love It!

A Sneak Peek At What’s New

New Arrivals You Don’t Want to Miss

Something Special Is Waiting For You

Let Us Help You Find What You Need

Your Next Favorite Item Is Here

Take A Look At Our Newest Finds

Re-engagement Campaigns

Re-engagement emails are essential for reconnecting with subscribers who haven’t interacted in a while. A captivating subject line is crucial for piquing their curiosity and creating a sense of urgency, encouraging inactive subscribers to open your email and reconnect with your brand.

Win-Back Campaigns

We miss you! Enjoy a special offer just for you

Come back to us, [First Name]! We miss you!

Return to [Brand Name] for exclusive savings

It’s been too long, [First Name]. Let’s reconnect!

We’ve got a special offer just for you—come back!

A special welcome-back offer awaits you!

We miss you! Come back and save today

Your cart is waiting for you—return and save today!

We’ve got a deal to welcome you back

[First Name], your favorite items are waiting

It's been too long, [First Name]

[Product Recommendation] just for you, [First Name]

[First Name], let's reconnect!

We want you back, [First Name]

Re-activation Sequences

Reconnecting: Let’s catch up – it’s been a while!

[First Name], long time no see – let’s reconnect!

Rekindling connections – let’s chat soon!

It’s been too long, [First Name] – let’s talk!

Rediscover our connection, [First Name]!

Bringing back memories – let’s reconnect!

Reviving our connection – let’s catch up!

[First Name], remember me? Let’s reconnect!

Time for a reunion – let’s get back in touch!

Back in touch – let’s catch up soon!

Let’s bridge the gap, [First Name] – chat soon!

Reconnect & reflect – let’s talk today!

Hey [First Name], let’s chat and catch up!

Reconnecting the dots – let’s talk soon!

Renewing our bond – it’s time to reconnect!

More re engagement email subject lines

Event Marketing Subject Lines

Event marketing is all about grabbing attention and getting people excited about what’s to come. One of the best ways to do that? Benefit-focused headlines! Whether you're sending a “Save the Date,” a quick reminder, or a thank you after the event, your subject line should highlight what attendees will gain.

In this section, we’ll explore how to craft email subject lines that focus on the benefits of your event, helping you drive interest and boost attendance.

Save the Date & Invitations

Save the date and invitation emails set the stage for memorable events—weddings, barmitzvahs, your cat’s birthday, you name it. These subject lines should spark instant excitement that gives subscribers a reason to mark their calendars and look forward to what’s ahead.

Mark your calendar – don’t miss this event!

Save the date, [First Name] – big day ahead!

You’re invited, [First Name] – join the fun

[Event] countdown begins – mark your calendar

A date to remember – join us for [Event]!

Get ready, [First Name] – exciting times ahead!

Join us – [Event] excitement is building

It’s happening, [First Name] – don’t miss it!

The [Event] is coming – save the date!

Reserve your spot – join us for [Event]!

Celebrate with us, [First Name] – it’s time!

Don’t miss out – [Event] is around the corner

Save the date – [Event] is almost here!

Your invitation awaits, [First Name] – join us!

[Event] just for you – mark your calendar

Event Reminders & Updates

Event reminder emails keep attendees informed and excited. Clear, timely subject lines highlight schedules, changes, or must-know details—ensuring your audience stays engaged and shows up ready for the experience.

Don’t miss [Event] – happening tomorrow!

[Event] reminder – we hope to see you there!

See you at [Event] – it’s almost time!

[Event] update – make sure you’re ready!

Exciting news – [Event] is around the corner!

[First Name], don’t miss [Event] tomorrow!

Last call for [Event] – don’t miss out!

[Event] starts soon – are you ready?

Get ready for [Event] – it’s almost here!

Important reminder – [Event] is tomorrow!

Join [Event] now – your spot is waiting!

[Event] countdown – just 1 day left!

[Event] details inside – check them out!

[First Name], here’s your [Event] news!

Secure your spot now for [Event]!

More event email subject lines

Follow-up & Thank You

Follow-up emails keep the event connection alive. Send your initial follow-up within 24 to 48 hours of the event to recap highlights, and invite next steps—turning one-time attendees into engaged, long-term participants in your community or brand.

Early bird registration (next webinar)

Got a couple of minutes [First Name]?

Thought these resources might help

Still interested in [Subject]?

Thank you for being a part of [Event Name]

Care to share your thoughts?

Our next program starts soon

Bonus for attendees (free training)

Share your thoughts and win coupons

5 min event recap (as promised)

[First Name], you showed interest in [Subject]?

Grateful you attended [Event Name]

You were a vital part of [Event Name]

Loved [Event Name]? You'll love this email, too!

[Event Name] was a roaring success, thank you!

Your energy was infectious, [First Name]

Cheers, you made [Event Name] SHINE

More thank you email subject lines

Email Subject Lines Best Practices & Guidelines

Like any form of art, it takes years of practice—and countless failures—to master it. The same goes for email marketing best practices, especially email subject lines, which play a critical role in that split-second decision: 'Should I open this?'

Luckily, we've been doing this for so long that we know every email subject line trick under the sun. Power words? A/B testing? Personalization that feels spot-on? You betcha.

In the following chapters, we're going to break down email subject lines examples to make sure that you walk away from this article with headers that don’t just get opened, but actually get read.

Character Length & Mobile Optimization

Cutting through a crowded inbox isn’t easy, but a short and snappy subject line can give you an edge. Keep it clear and concise so it gets straight to the point, and make sure it fits on mobile without getting chopped off.

Most mobile email apps show somewhere between 30–70 characters (or 4-9 words). This is the sweet spot you want to aim for, as emails with mobile-friendly subjects that stay in this range get the highest email open rates–43.38%.

Also, keep in mind that most email apps display the email preheader along with the subject line. A good rule of thumb for preview text is: complement the header, add context, include a call-to-action subjects, and aim for around 35-140 characters.

Personalization Best Practices

A little personalization goes a long way, especially if you’re dealing with cold email subject lines. When a subject line directly addresses the reader—by name or based on their past behavior—it instantly feels more relevant and engaging, increasing the chance of it being opened by 26%.

Of course, addressing the recipient by their name is only the beginning. You can use dynamic subject lines by leveraging real-time data. This lets you highlight products a subscriber recently browsed, use location- or weather-based messaging, or promote local events—great if you operate a retail business.

Spam Filter Avoidance

There are 'power words' and there are spammy words, which can hurt your inbox placement, let alone email deliverability. Avoid spam words that sound too good to be true, like “free”, “guaranteed”, or “make money fast”. While these words might seem tempting to grab attention, all they will do is trigger spam filters.

Here are a few trigger words that should give you a better idea of what to stay clear of in your email subject lines:

100% free

No cost

No purchase necessary

You're a Winner!

Claim your prize

Free trial

Limited-time offer

Act now!

Guaranteed

For just $XXX

Emotional Intelligence in Subject Lines

Emotional intelligence in subject lines is all about tapping into the emotions, needs, and desires of your audience. Also, about subject line appearance. By understanding what resonates emotionally with your subscribers, you can craft email subject lines that spark curiosity, urgency, or positivity.

The best part is that email subject lines that tap into one of those emotions have an open rate of 31%, which is almost double that of the more rational ones. It’s not rocket science to spark FOMO or curiosity, but it does take some practice to effectively evoke empathy through a subject line.

Power Words That Increase Opens

Sale. New. You. Feel that? These power words tap into a subconscious response, grabbing our attention and pulling us in. While there’s no secret subject line formula that guarantees every email will get opened, marketers have discovered which words boost the chances of your email being noticed.

That said, here are a couple of power words that should do the trick:

Epic

Giveaway

Greatest

Guilt-free

Elite

Best-selling

Certified

Endorsed

Ensured

Expert

Sale

Special/Specials

Offer(s)

A/B Testing Framework

There’s no one-size-fits-all approach to compelling email headers. And this is where subject line split-testing comes in.

A/B testing subject lines involves creating two or more versions with slight subject line variations—like wording, emojis, or personalization—and sending them to segmented email subjects, while monitoring subject line performance metrics. It’s the best way to go about email campaign optimization and subject line optimization.

Analyze open and click-through rates to determine the best-performing version. Test urgency vs. benefit, subject line length, and curiosity vs. clarity to filter out your winner. Before you do all that, think about what you want to achieve with this subject line: do you want to increase open rates, click-through rates, conversions, or other metrics?

Final Words

Writing subject lines that attract clicks isn’t about using Jedi-like mindtricks—it’s about knowing what genuinely captures people’s interest and honoring their time. Of course, a little clickbait sprinkled on top can't do much harm, can it?

Think of your headline as a promise: something you’ll actually deliver on. Craft it to spark curiosity, the feeling of importance, even FOMO (when the occasion calls for it), but keep it grounded.

At the end of the day, the goal isn't just to get attention—it's about giving people something they actually want and getting something back in return. When you do that, it's a win for them, and it's a win for you too.