[Pymilter] Possible to use a milter for reverse SRS?

[Stuart D. Gathman]

On Mon, 28 Jan 2019, Melanie Dymond Harper wrote:

> Hm. Okay, I've now taken out any alias declarations for the domain being
> used as fwdomain, and the only "fancy" mail processing is now srsmilter
> (I previously had spfmilter in there as well, but I've taken that out
> for the moment until I can be more sure of what's happening.) As far as
> I can tell, srsmilter isn't doing anything at all to mails coming in
> addressed to (SRS-encoded) addresses at the domain configured as
> fwdomain. It's accepting mail to known accounts -- which is fair enough
> since that domain is in the local-host-names file -- but for anything
> else it is rejecting as "unknown user", it isn't trying to unwrap it.

You need to put domains you want SRS decoded into srs = in pysrs.cfg.
Looking at the comments, I see they should be updated.  Is this
more clear?

@@ -11,7 +11,8 @@
  ;sign = localdomain1.com, localdomain2.org
  # rewrite all other domains to this domain using SRS
  ;fwdomain = mydomain.com
-# reject unsigned mail to these domains in pymilter (used by pymilter)
+# decode (reverse) srs to these domains (see also reject_spoofed)
+# NOTE: pysrs can also do this
  ;srs = otherdomain.com
  # do not rewrite mail to these domains
  ;nosrs = braindeadmail.com


-- 
 	      Stuart D. Gathman <stuart at gathman.org>
"Confutatis maledictis, flamis acribus addictis" - background song for
a Microsoft sponsored "Where do you want to go from here?" commercial.