Hieronim Sokolski:
> Hello,
>
> I am looking for SRS solution for Postfix, as in SPF-compliant
> world lack of this breaks forwarding from my site. We use Zimbra,
> so hacks with .forward file or /etc/aliases directing to "|
> /usr/bin/srs ..." will not work. I am going to either install SRS
> software on Zimbra MTA, which is Postfix controlled by Zimbra
> configuration scripts, or on outgoing mail gateway - also Postfix
> now.
>
> I realized that Postfix can support SRS through milters. Can you
> recommend me any SRS milter, stable and known to work with Postfix
> (not employing protocol features present only in Sendmail)?
> Eventually I can switch to another edge MTA, but if this is possible,
> I will stay with Postfix.
>
> I suppose that the question isn't too original, but I have found
> surprisingly few information on the web, and mostly outdated.
Indeed. Five years ago I hoped that it would be sufficient to provide
the Postfix hooks, so that people with more time than me could provide
the implementations of DKIM, SPF, SRS, and other protocols.
If you find a 100% Milter-based SRS solution then you are welcome
to report to the mailing list. The ones that I found invoke socketmaps
from sendmail.cf, instead of using the Milter SMFIR_CHGFROM (replace
sender) command which is available since Postfix 2.6. At this point
it would probably make sense to add Sendmail-style socketmap support
to Postfix.
Wietse
