[bug-anubis] anubis and transparent gpg encryption engine integrated in a MTA

[Fabio Pietrosanti]

Dear all,

i'm writing this email because i doesn't know well anubis and see that 
since december there is a rewrite from scratch and i have a need i still 
doesn't understand if anubis could solve.

Basically what i want to do is to have a content filtering engine on 
which via postfix content-filter (speak smtp) i get an incoming email, 
pass it to this filter which:
- if not encrypted
  - lookup at recipient address
  - find the right pgp public key on a keyserver, or on internal keyring
  - encrypt email with PGP MIME
  - return to the MTA
- if encrypted return directly to MTA

In such situation obviously there are some issue to manage like a locale 
cache of public key but it seems to me quite a simple task to do.

The goal to reach is that every email that pass trough this filter need 
to get encrypted if proper pgp key is found.

In this way it's possible to provide the same functionality of pgp 
universal server and it's also possible to allow user to have all email 
encrypted on the mailserver.

In this way users doesn't need to trust system administration or who 
manage the email systems because all emails are encrypted.

Does anybody know how to do that with anubis? Does someone had already 
done that?

Please let me know

Cheers,
Fabio