FMail2, a 'light' version of FMail.
FMail2 is a ‘light’ version of FMail. Not too many bells and whistles. It is for the purists amongst us.
Things that are not really needed are left out.
For example, consider global shortcuts to open or close the program. Leaving this out results in a less complicated and smaller application. The same goes for auto-start on login, extra options in contextual menus, etcetera.
But this light version has one handy extra: the support of tabs. This allows you to have email, contacts and calendar open at the same time. Or use a separate window for composing an email (by dragging a tab to new window).
What's in it
- It is a native macOS application
- Clicking an email link elsewhere will open the Compose panel, with all provided fields filled (if you have made FMail2 your default email client)
- FMail2 will offer to be the default email program
- FMail2 supports native macOS tabs and remembers the tabs as they were when you closed the program (no more then 6 tabs are reopened; otherwise Fastmail complains there are too many connections)
- ⌘ click on a link will open a new tab
- Decide what you want to use as your Downloads folder
- Can show the number of unread emails in the Dock icon
- Native Print of emails
- Attachments can be previewed and downloaded (pdf, jpeg etc.)
- Mouse over will show you all links, so you know before you click
- Not running in your browser means you are protected against cross-website trackers.
- Attachments are downloaded from inside the application
- Runs natively on Apple Silicon, is notarized by Apple and sandboxed
- Automatic updates (if you want)
- Localized in English, French and Dutch
- Only about 7MB in size
Tips on using this light version
My experience is that Fastmail users are easy with computers. You know you can start a program when you log in via the System Preferences -> Users & Groups -> Login Items.
If you have already an application like Keyboard Maestro installed, opening or closing the application via a keyboard shortcut won’t be a problem. Or you can write a script to do this.
Using tabs is handy too. Compose a new email by ⌘ clicking the Compose button, to add a new tab with the Compose screen opened (you can do this with any Fastmail link).
If you are not this kind of user, then stick on FMail.

Free Download
Open this page on your Mac to download FMail2
FMail2 runs on macOS 11.3 Big Sur and higher
and is notarized by Apple.
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Maybe FMail better fits your needs?
If you find FMail2 useful you could
Disclaimer
If Fastmail decides to change the underlying code, there is no guarantee I can keep FMail2 alive.