Automatically Find PGP Keys in Mu4e

I have found a peculiar delight in encryption, and particularly in using pgp -based asymmetric cryptography. This is especially useful for securing email communications, but doing so requires remembering to run M-x mml-secure-sign or mml-secure-encrypt in Mail Utilities For Emacs (Mu4e) before sending the message. For this reason I have been wanting to write a quick method that automatically adds…