


Test the sucessful installation by pasting this into your commandline: pinentry-mac Setup Wizard and choose “extended configuration (for advanced users)”. The package “pinentry-mac” is needed to have GUI support. This hinders the Enigmail setup wizard later on, so we have to fix this. However, as you can read in the above mentioned post, it will only install “pinentry”, which does not provide GUI support but runs only on the commandline. This will install the gnupg package so it can be used on the commandline.
GNUPG MAC MAC PINID MAC OS X
I found this smart post which outlines the procedure and give necessary hints that I will simply copy here: Engimail, gnupg & pinentry on Mac OS X using Homebrew. I much prefer single packages with only the most necessary stuff and I like to install things via homebrew to keep everything smart, manageable and in one location. However I am not a fan of installing whole suites. You can find a list and source packages of gnupg on their website: I found various binary versions of GPG key management software. Click “Add to Thunderbird” and you’re good to go. In Thunderbird go Tools > Addons and search for “Enigmail”. I will let you figure out that one by yourself. This post will just describe the setup on Mac OSX.

To understand the cryptography behind it and read more about PGP, please use Google. To sign and encrypt emails on Thunderbird one can use PGP keys.
