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  • Start With Free Plan
    Grow your business, not your expenses
    Turn curious visitors into devoted fans and drive more sales – no cost to get started!
    • Free Forever plan for 2,500 subscribers and up to 15,000 emails/month
    • Free & responsive email templates library
    • Free popups & forms
    • Intuitive drag-and-drop email builder
    • Unlimited automation and segmentation
    • Premade automation workflows
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One platform for your SaaS marketing
and transactional emails

Sender is an all-in-one email platform that runs SaaS marketing campaigns and transactional emails from one dashboard. It's built for founders, product teams, and marketers who need automation, segmentation, and API sending.

No Credit Card Required. Cancel Anytime.

B2B
Join over 180,000 companies using Sender

Automated email campaigns that scale with your business

Save hours on manual work with automation that personalizes every message, nurtures leads, and boosts retention.
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Welcome & onboarding series

Guide new users through their first steps with an automated welcome series that fires the moment someone signs up.
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Win-back & re-engagement

Don't let inactive users stay that way. Re-engage inactive users with automated flows that remind them why they signed up.
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Post-purchase follow-ups

Your customer's journey doesn't end at the checkout. Automate thank-you emails and feedback requests that drive repeat purchases.
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Trial expiry & renewal reminder

Use timing and behavior-driven triggers to remind users when and why they should renew.
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Feedback & survey emails

Send timely automated feedback emails that help you refine your product, boost retention, and build a better experience.
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Custom event-based triggers

Set up custom event-based triggers that respond to user actions to send timely, personalized emails that keep users engaged.
Start With Free Plan

No Credit Card Required. Cancel Anytime.

Start With Free Plan

No Credit Card Required. Cancel Anytime.

Bonus features you’ll love

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Email A/B testing

Test everything from subject lines to CTAs for higher opens and conversions.
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Brand auto-styling

Auto-style emails to match your logo, color palette, and fonts for a consistent look.
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Mobile-optimized emails

Ensure every email looks perfect, whether it’s viewed on a computer or a mobile device.
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HTML email builder

Want more control over your design? Use our HTML builder to create pixel-perfect emails that match your vision.
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Free image library

Use a library of 1000+ royalty-free images and GIFs to enhance your email designs.
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Personalization tags

Use personalization tags to automatically insert user details and boost engagement with every send.

All-in-one platform for every email you send

No need to juggle multiple services—handle everything in one place. While your transactional emails run reliably in the background, use the same platform to design and send promotional campaigns with a drag-and-drop editor, automation workflows, and subscriber management.
High-priority service emails

Send time-sensitive emails with zero delays

Sender makes sure password resets, one-time password emails (OTPs), and account confirmations land in inboxes instantly - even when everyone's online at once.

  • Low-latency send path
  • Smart retries & queuing
  • Real-time event logs
High-priority service emails
Email security and deliverability

Protect your reputation with built-in security

Your transactional emails won't end up in spam folders. Sender handles the technical details – authentication protocols, IP warming, and bounce management – so they reach inboxes.

Email security and deliverability

Why SaaS businesses choose Sender as their all-in-one platform

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One domain, unified reputation

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Faster setup & easy management

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Up to 80% lower cost

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Simpler tech stack & high reliability

Start With Free Plan

All Features Included—No Add-On Fees.

Track and manage every step from send to inbox

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Your API, your rules, your message

Grab your API keys, hit the REST endpoint, use SMTP – whatever fits your setup. Drop in variables like customer names or order totals, add conditional content based on user data.

About API
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Turn reports into better deliverability

Filter by who received an email, check why some bounced, and spot patterns in delivery issues. Push delivery events to your own systems through webhooks, or export what you need.

About reports
Sign-up forms

Grow your email list

Popup forms example

Popups & forms

Yeah, popups can be frustrating. Yours won't be. Create a popup form with smart timing, relevant offers, and an easy close for visitors who aren't interested.

Spin-the-wheel popup example

Spin-the-wheel popup

Who doesn't like winning something? Gamify your lead generation—people engage more when there's an element of fun involved.

Landing pages example

Landing pages

Sometimes you need a dedicated page doing one thing really well—converting visitors to subscribers. Well, it's just around the corner.

Start With Free Plan

No Credit Card Required. Cancel Anytime.

Easy integration with popular tools

Website integration is a breeze with Sender. Connect instantly with leading content management systems, CRMs, and ecommerce platforms, including Wordpress, PrestaShop, WooCommerce, Zapier, and more.

Frequently Asked Questions

1.

Can you send marketing and transactional emails from one platform?

Yes. Sender runs promotional campaigns and transactional emails like password resets, receipts, and account alerts from the same account and sending domain. This keeps your SaaS email under one unified sender reputation instead of split across separate tools, and lets marketing and product teams work from a single dashboard with shared analytics.

2.

What's the difference between transactional and marketing emails?

Transactional emails are triggered by a user action – sign-ups, password resets, one-time passcodes, and billing notices – and go to one recipient at a time. Marketing emails are sent to segments to promote or nurture. Sender handles both from one place.

3.

Should I use SMTP or the REST API to send transactional email?

Use SMTP relay when you want the fastest integration with an existing mail library, and the REST API when you need structured calls, templates, and richer event data. Both run on the same low-latency infrastructure and support webhooks for delivery events.

4.

How does Sender keep deliverability high for SaaS senders?

Sender supports SPF, DKIM, and DMARC authentication, handles bounces and complaints automatically, and includes suppression lists out of the box. For senders under 150K emails monthly, shared IPs need no warm-up, and automated reputation management keeps your sending steady.

5.

Is there a free plan for SaaS startups?

Yes. Sender offers a free-forever plan so early-stage SaaS teams can send campaigns and transactional emails without a credit card. All core features are included with no add-on fees, and pricing scales with contacts rather than charging per feature.

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Always ready
to help you

We work around the clock to assist you. Drop us a message any time,
and we’ll get back to you in seconds!

Opening hours
24/7
Always available
Mobile chat
10 sec
Avg. response time
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99%
Satisfaction rate
  • Onboarding assistance
  • Extensive knowledge base
  • Free migration service

Trusted by 180,000+ successful
businesses worldwide

Momentum leader High performer Capterra leader
Simple email marketing with affordable pricing
  • Premium features included
  • No hidden costs or usage limits
  • Scale from startup to enterprise
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