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Letter Opener for macOS Mail

Q
Is there a version for macOS Sierra 10.12 (Mail 10)?
A

Yes, Version 9 supports macOS Sierra. You can download it here.

Q
Why did the winmail.dat file just disappear?
A

Some winmail.dat files just contain the mail message as rich text formatted (RTF) again. In this case Letter Opener shows you the rich text version.

Q
Incompatible Plug-ins Disabled
A

Download and install the latest version here. You need to keep Letter Opener Pro up-to-date.

Q
Can't I find Letter Opener for macOS Mail in the Applications folder?
A

Because Letter Opener for macOS Mail is a Plug-in it is not installed under Applications. You find it listed in the Mail Application Menu:


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