Searching some more, I found that the problem seems to be due to broken gnome-keyring pgp support. If I don't save the passphrase in the keyring, evolution can send signed mail. So this should be handled together with gnome-keyring people.
Searching some more, I found that the problem seems to be due to broken gnome-keyring pgp support. If I don't save the passphrase in the keyring, evolution can send signed mail.
So this should be handled together with gnome-keyring people.