This is just a little script to automatically find and import the public key used to sign an email. It will first check if the email itself contains the public key, and if it does not, then it will attempting to get the key from many keyservers.
I use this Claws Mail filtering rule, it runs grep first to check if the email contains a signature, which helps speed it up when you have to run it in bulk. Just add it to `~/.claws-mail/matcherrc` under `[filtering]`
3. Enter `test "grep -- \"-----BEGIN PGP SIGNATURE-----\" %F"` for the condition.
4. Enter `execute "python3 {SCRIPT LOCATION}/gpg-email-helper.py %F"` for the action.
5. Click "Add"
6. Click "OK"
### Processing (old) emails in bulk
With a filtering rule, Claws Mail will only run gpg-email-helper when it receives a new email (that contains a signature). To run it on all emails instead, you can add the rule to pre/post-processing instead, but can take upwards of a minute to load every time you open your inbox, can cause the POP3/IMAP connection to time out, and often just crashes Claws Mail. Instead, I'd just just running it manually if you want to import public keys from all your old emails.
