- If a mail has more then one recipient and not for all recipients an
authenticated certificate can be obtained, the mail processing is
split into 2 streams - one that encrypts and an other which sends the
mail in plaintext.
- For both streams the header and the list of recipients is adjusted
accordingly.
- As the milter interface only allows one stream, the second stream is
reinjected into the MTA (via SMTP). The MTA is hardcoded to be
localhost:25.
Malte Meiboom