[mew-int 3211] decrypting mail body starting with -----BEGIN PGP MESSAGE-----

Hi all.

I can read and send encrypted PGP mails.
But sometimes I receive a mail that is not recognized as encrypted;
these mails start (in the body) like this:

-----BEGIN PGP MESSAGE-----
Charset: ISO-8859-1
Version: GnuPG v2.0.19 (GNU/Linux)
Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/
...
-----END PGP MESSAGE-----

I can save the body of the mail and decode it with gnupg by hand,
but it is probably possible in Mew too?

Thanks
Sven