Suggestions for common UX practices

This page is intended for developers of MUA's or other OpenPGP GUI's to have a place to note down suggestions which could help with the overall OpenPGP User Experience.

OpenPGP

MIME part names

To best show users that do not have a PGP/MIME aware MUA what a Mail contains it is suggested that the header of an OpenPGP encrypted MIME part or of the signature has a file name.

• openpgp-encrypted-message.asc: For encrypted messages e.g.:

Content-Type: application/octet-stream;
	name="openpgp-encrypted-message.asc"
Content-Disposition: inline;
	filename="openpgp-encrypted-message.asc"
Content-Transfer-Encoding: 7bit

• openpgp-digital-signature.asc: For the signature e.g.:

Content-Type: application/pgp-signature;
	name="openpgp-digital-signature.asc"
Content-Transfer-Encoding: 7bit