[Evolution] signed messages

[tobias <iso8859-1 gmx de>]

I've got a question. Sometimes I recieve digitally signed mails from
other users, but they're using other types of mail programs and at the
moment evolution does not recognise these as signed messages.
The Format is:
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
...

-----BEGIN PGP SIGNATURE-----
bla
-----END PGP SIGNATURE-----

I can verifiy them if I use gpg directly but it's rather tiresome to
save each message and then verify it via commandline. Is there a way
evolution can do this for me?