epg? easypg? how?

[Pietro Giorgianni]

hi,

i'm using gnus 5.11 (i guess; i've installed the debian package,
version 5.11+v0.5.dfsg-3).

i've also installed easypg (0.0.7).

in my .gnus i have:

(require 'epa)
(setq mml2015-use 'epg)

(setq gnus-treat-x-pgp-sig t
      mm-verify-option 'always
      mm-decrypt-option 'always)


if i try to sign a message, with C-c RET S o (or everything else), it
fails sending the message, saying:

mml1991-sign: Cannot find sign function

also, gnus tries to verify all incoming messages, but without much
success, it seems: i tried sending myself a mail, signing the body of
the message with epa-sign-region (armored); gnus says:

[[PGP Signed Part:Undecided]]

which makes no sense, since i should be definitively trusted.

can anybody help?

is there a gnus/easypg howto?

or should i use a different gnupg frontend?

thanks
giorgian