Sieve vacation/redirection and SMTP authentication

seph seph at
Tue Sep 21 12:06:22 EDT 2004

> Our SMTP servers (Postfix) only allow authenticated users to send
> messages, and checks if the sender login matches with the "mail from"
> line of the SMTP protocol. The SMTP servers and IMAP/POP3 servers are
> not installed on the same machines.
> This setup, as is, would make it impossible for sieve to send
> redirection or vacation messages, as there would be no way for it to do
> the authentication, so some kind of modification would be necessary to
> make it work. I could think of two solutions:

There's a third solution, that I use, which is to have postfix allow
the mailserver's IP to relay.

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