Hoi Jeronimo! J> since a couple of weeks ago Gnus seems not to be including MIME J> attachemnts sometimes. I'm unsing emacs 20.6.2 and Gnus 5.8.6.
[...] J> So, did anyone else have such a problem? Any ideas of what's J> going on? I'll try downgrading Gnus next, then I'll come back to J> tell you if that fixes the problem... It's a well-known bug, that *only* affects Gnus 5.8.6. You should downgrade if you can't live without sending attachments or wait till the maintainer packages a newer Gnus version. -- ignotus