Logo
Submit a request
Sign in

Changing Font Sizes in Mailbird Next

  1. Mailbird Next for Mac & Windows
  2. Mailbird Next Features
  3. Core Features
Avatar
Oliver Jackson
  • November 10, 2026 17:07
  • Updated

✍️ Choose a Comfortable Font Size

Mailbird Next lets you choose a default font size for composing emails. You can also change the size of selected text in an individual message without changing your default.

⚙️ Change Your Default Composer Font Size

  1. Open Settings.
  2. Select Composing.
  3. Under Default font, open the Font size picker beside the font picker.
  4. Choose Default or a size: 8, 11, 12, 14, 18, 24, or 36 points.
  5. Check the preview text to see how your selection looks.

Your selection is saved automatically. It also updates the base text style in an already-open composer. Text with its own explicit formatting can retain that formatting.

🔤 What Does Default Mean?

With Default selected, ordinary composer text is displayed at 11 points, but Mailbird Next does not add a default font-size instruction to the outgoing message. This allows recipients to use their own email app’s text-size settings.

Choosing a numeric size sets an explicit base font size for the message you send.

⚠️ Note: Default does not remove font sizes already applied to selected text or included in pasted content. Signatures, quoted replies, and other formatted content may keep their own sizes.

📝 Change Font Size in One Email

  1. Open a new email or reply.
  2. Select the text you want to resize.
  3. Use the composer toolbar’s Font size picker to choose a size.

To choose a size for text you are about to type, place the cursor where you want to write and select the size before typing. Changing the size in the toolbar does not change your saved default in Settings.

🔍 Font Size or Display Zoom?

Composer font size affects message formatting and can change how your text appears to recipients. Display zoom changes how large content looks on your screen.

⚠️ Note: If you only want a larger on-screen view, see How to Adjust the Zoom Level in Mailbird Next.

⚠️ Formatting and Version Differences

  • Recipient email apps may display formatting differently, so the final appearance is not guaranteed to be identical everywhere.
  • Pasted text, signatures, and quoted content can contain their own font sizes. Select the relevant text to adjust it explicitly.
  • If the font-size controls are missing, check that you are using an up-to-date desktop version of Mailbird Next and contact us if you still cannot find them.

💬 Need More Help?

If you need help, contact our Customer Happiness Team. Include your Mailbird Next version, operating system, and a description of what you see. We’re always happy to help.

Have more questions? Submit a request
Return to top

Related articles

  • Changing Your Sidebar Background in Mailbird Next

Articles in this section

  • How to Enable Dark Mode in Mailbird Next
  • How to Enable and Use App Integrations in Mailbird Next
  • Using Email Tracking in Mailbird Next
  • Changing Font Sizes in Mailbird Next
  • Group Emails by Date or Sender in Mailbird Next
  • Changing Your Sidebar Background in Mailbird Next
  • Spam and Mailbird Next: how to manage unwanted emails
  • Send and Mark as Done in Mailbird Next
  • Personalizing Your Mailbird Next Workspace
  • Composer Formatting Tools in Mailbird Next
See more
Email just the way you like it
facebook twitter instagram linkedin youtube
LEARN MORE
  • Email Features
  • Pricing
  • Blog
COMPANY
  • About
  • We’re Hiring!
  • Press
  • For Business
  • Mailbird for Mac
  • Testimonials
SUPPORT
  • Help Center
  • License Key Retrieval
  • Become an Alpha tester
  • Unsubscribe from Newsletter
SETUP
  • All IMAP and SMTP settings
  • Gmail.com IMAP SMTP
  • Outlook.com IMAP SMTP
  • Office365 IMAP SMTP
  • Yahoo.com IMAP SMTP
  • Godaddy email IMAP
BEST ALTERNATIVES
  • Best Gmail App
  • Best Alternative to Outlook
  • Best Alternative to Thunderbird
  • Best Alternative to Windows Mail
mailbird logo
© Copyright 2012-2026 Mailbird™ All Rights Reserved.
Terms of ServicePrivacy PolicySitemap
Made with
Support: support@getmailbird.com

Mailbird for Mac is coming

Sign up to get early access!

Thank you! we will notify you with updates about Mailbird for Mac

close