See why Postbox`s features make it the best email client for Mac

Postbox for Mac

Postbox 2.1.4

  -  13.4 MB  -  Trial
  • Latest Version

    Postbox 7.0.64

  • Operating System

    Mac OS X 10.5 or later

  • User Rating

    Click to vote
  • Author / Product

    Postbox, Inc. / External Link

  • Filename

    postbox-2.1.4-mac.dmg

  • MD5 Checksum

    e1c4f617a589017bd11bc3f653d98428

Sometimes latest versions of the software can cause issues when installed on older devices or devices running an older version of the operating system.

Software makers usually fix these issues but it can take them some time. What you can do in the meantime is to download and install an older version of Postbox 2.1.4.


For those interested in downloading the most recent release of Postbox for Mac or reading our review, simply click here.


All old versions distributed on our website are completely virus-free and available for download at no cost.


We would love to hear from you

If you have any questions or ideas that you want to share with us - head over to our Contact page and let us know. We value your feedback!

  • Postbox 2.1.4 Screenshots

    The images below have been resized. Click on them to view the screenshots in full size.

    Postbox 2.1.4 Screenshot 1
  • Postbox 2.1.4 Screenshot 2
  • Postbox 2.1.4 Screenshot 3
  • Postbox 2.1.4 Screenshot 4
  • Postbox 2.1.4 Screenshot 5

What's new in this version:

- Ability to specify a font point size for outgoing HTML messages and many HTML editor fixes to better preserve fonts and font sizes during editing
- Address Book Groups and mailing lists are now auto expanded in the compose window. This behavior can be configured.
- Postbox now honors the distribution list setting for choosing the correct e-mail address for a contact on Mac OS X when sending to a mailing list
- Better support for opening attachments on Mac OS X
- Fixed an issue with deleting a message and having it re-appear in the Inbox
- Changes to enable the latest Send Later Add-on to work in Postbox
- Changes to enable the BETA version of Microsoft Exchange Provider for Lightning Calendar to work in Postbox
- Enable Quick Move support from the stand alone message window
- Fixed an issue with the wrong identity being chosen on reply when using a Global Inbox with POP3
- Fixed an issue with messages getting stuck in the Unsent folder
- Fixed an issue when using Postbox with a large number of accounts where you could no longer send messages without restarting
- Performance improvements for summarize mode in compose
- Performance and Stability Improvements