I receive emails beginning with pgp signatures, what can I do?
This is Inline PGP, it is currently not supported by Evolution, but Matt Brown is working on this currently. Evolution supports Outline PGP (or PGP/MIME) where GPG/PGP signatures are embedded in a .asc file that is attached to the message. Outline PGP has several advantages over Inline PGP (the charsets are always defined, attachments are also encoded and part of the fingerprint).