4 Send notification mails to user encrypted with GPG.
5 Each user can enable it and submit his public key under Settings-> Addon
6 -> "Secure Mail" Settings.
8 Use 'php-gpg' library, a pure PHP implementation of GPG/PGP, released
9 under GPL. See [project repo](https://github.com/jasonhinkle/php-gpg).
11 This plugin need Friendica version > 3.3.2 to work.