revsuine/gpgmymail
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Encrypt/decrypt mail using GPG/MIME. Takes an email from stdin and outputs to stdout. Written to be used as a Sieve filter through sieve_extprograms.
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README.md

gpgmymail

Takes an email from stdin and encrypts it using the recipient's PGP key, provided as an argument when calling the script.

Written to be a Sieve filter to be used with sieve_extprograms. Can be used in a Sieve filter e.g.:

require ["vnd.dovecot.filter"];
filter "gpgmymail" "pid1@revsuine.xyz";

Will encrypt all incoming mail with the pid1@revsuine.xyz PGP key.

TODO link my blog post when I make it fully explaining how to use as Sieve filter.

I use this script on my own mail server so this should be maintained to work with the up-to-date versions of Python and python-gnupg

Requirements

Credits

  • Julian Klode for the original code
  • revsuine for some modifications:
    • Not encrypting already encrypted mail
    • Retaining mail attachments