40+ Best official email subject lines

Official emails are those that your business uses to share information with its employees and teams, both internal and external. You probably already use these emails to meet various organizational needs, from broadcasting official announcements to conveying important project updates.

Here's a compiled list of official email subject line ideas to make your job easier!

Official email subject line

When sending emails to schedule meetings, use clear subject lines that include meeting agendas. Inside attach relevant files. Wherever possible, use scheduling tools.

Let's check out some official email subject lines for use in your internal campaigns:

Important update: Company policy revisions

Q3 review: Progress & future outlook

Q2 results announcement

Alert: Emergency evacuation drill details

Special webinar on diversity & inclusion

Invitation: Shareholder meeting agenda

Cybersecurity Awareness week events

Employee benefits workshop: Register here

Business Continuity Plan: Meeting on [Date]

Proposal for partnership expansion

Exploring collaborative opportunities

Digital transformation roadmap

Q4 recap: Key highlights & insights

Holiday announcement: Office closure

Project milestones update: Progress report

Contact us email subject line

'Contact Us' email subject lines are used in email campaigns to encourage prospects and customers to contact your business. 

There might be several reasons for this, including but not limited to product feedback, early access to a product or offer, or inviting interested prospects to confirm back for a product demo.

Here are some 'Contact Us' email subject line examples to show you how it's done:

[Business Name]: How to avail tech support

Exclusive survey: Your voice matters

[Product Name]: Reply to book your preorder

Be a part of our next big thing

Help us serve you better

Curious about our new launch?

[Product Name]: Vote for the best features

[Event Name]: RSVP to confirm attendance

[Product Name]: Share your story & get featured

Mega SALE: Reply for 15% extra OFF

Become a part of our community

Can you help us improve [Product Name]?

Connect for exclusive member benefits

Reply YES for FREE shipping

How did we do? Share your thoughts

Work anniversary email subject lines

When you send a work anniversary email, you acknowledge and celebrate an employee's time with your company. It is a great way to make them feel unique and valued for contributing to your business's growth.

Here are some work anniversary email subject line examples:

Marking your 5 years of brilliance

A decade with [Company Name]: Happy 10th!

[First Name], time flies: Your 3-year mark is here

Cheers to your 7-year milestone!

A toast to your 3-year tenure, [First Name]

Your 8-year saga of success

It's been 4 amazing years, [First Name]!

Thank you for 2 years of dedication

Congrats on your 5-year workaversary!

7 years of excellence and counting

To 3 years of unstoppable you

Here's to your 2-year rollercoaster ride

Hats off to your 7 stellar years!

Another year, another milestone!

Cheers to continued success!

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Open Sesame: Subject lines to get your emails read

Your perfect email won't matter if it won't be opened. Want some inspiration? Check these robust subject lines, designed for maximum opens of your promotional emails.
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Hero illustration

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