GPGMail is a plugin for OS X's Mail.app that lets you send and receive secure, OpenPGP encrypted and signed messages.

This version is a modified fork of the original, provided free for the community with license checks and reference to original project and team removed from source.

GPGMail developed by GPGTools Gmbh has recently moved from free and open-source to a subscription payment model. That being said, the project GPGMail itself is still open-source so I forked it and removed any checks for an active subscription.

That being said, I am not providing compiled binaries until I'm sure anything I distribute doesn't conflict with the original license used. For now you have to build it yourself.

ONLY TESTED ON MOJAVE, I don't guarantee this will work on High Sierra

Install GPGSuite (latest) from the GPGTools website.

git clone https://github.com/awkimball/GPGMail.git
cd GPGMail

cd Dependencies
git clone https://github.com/GPGTools/Libmacgpg.git
cd Libmacgpg
make
cd ../..

As seen above, Libmacgpg must be built with make after cloning.

From your top-level GPGMail directory:

make

• Quit Mail.app
• In finder, navigate to /Library/Application_Support/GPGTools/GPGMail/ and move the GPGMail_XX.mailbundle file to somewhere like the Desktop for temporary safe keeping.
• In your GPGMail repository that you cloned in Step 1 and built in Step 3, navigate to build/Release/
• Rename GPGMail.mailbundle to GPGMail_XX.mailbundle replacing XX with the number from the file you moved to the Desktop.
• Move/copy your new GPGMail_XX.mailbundle to /Library/Application_Support/GPGTools/GPGMail/
• Launch Mail.app
• Done! If you check the GPGMail preference pane it should show a valid activation.