Alex, your mutt not sign in attachment like signature.asc: Content-Type: application/pgp-signature Content-Disposition: inline
But Joseph's mutt is right: Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature Content-Disposition: inline I'm expected: Content-Type: application/pgp-signature; name="signature.asc" Content-Description: GnuPG digital signature Content-Disposition: attachment; filename="signature.asc" Joseph, How to set 'name="signature.asc"' ? Could you give me a sample ? Thanks, Dongsheng
pgpJ6WF3Cs3sh.pgp
Description: PGP signature