Archive a copy of outgoing mail

[szuturon]

I've seen a post regarding this subject, and it lead to the feature being requested. It didn't seem to lead anywhere though.

Does anyone have any suggestions how to achieve this goal? If I were to switch from using qmail, what alternative should I try without breaking Plesk?

Edit: Has anyone had any luck with setting up qmail-taps? The patch download seems to lead to a 404 now.