[rt-users] RT 3.8.2, Postfix, and external aliases

[Damon Miller]

Jo,

Thanks very much for your reply.  I don't think Postfix's command-line
'sendmail' supports this option, unfortunately...  Postfix's
documentation states that the local delivery agent ('local') does
prepend Return-Path and From headers but this isn't happening for me.
I'll send a note to the Postfix list.  Hopefully someone will provide
some guidance.

Thanks again,

Damon

--

Damon T. Miller
Director of Application Services
Thinking Phone Networks
damon at thinkingphones.com 
617-649-1388 (Office)


> -----Original Message-----
> From: Jo Rhett [mailto:jrhett at netconsonance.com]
> Sent: Thursday, February 05, 2009 2:56 PM
> To: Damon Miller
> Cc: rt-users at lists.bestpractical.com
> Subject: Re: [rt-users] RT 3.8.2, Postfix, and external aliases
> 
> I don't know if postfix supports this, but Sendmail proper allows "-
> ba" which means that it populates the envelope sender from the From:
> line in the message.  Adding this to the sendmailpipe invocation would
> solve your problem if postfix does this as well.
> 
> On Feb 5, 2009, at 11:23 AM, Damon Miller wrote:
> > Hi all.  I need a little guidance on a problem I'm having with RT
> > 3.8.2
> > using Postfix as the MTA.
> >
> >
> >
> > The issue is that replies are not sent from RT when an external
> > alias is
> > used; these messages are identified as bounces because their
> > 'Return-Path' header is empty.  Replies are sent without incident
when
> > the actual address on the RT server is used.
> >
> >
> >
> > I do not have control over the remote server's configuration
(running
> > Microsoft Exchange).  I do have control over my own Postfix server.
> >
> >
> >
> > The basic configuration is as follows:
> >
> > helpdesk-support at provider.com  --  RT's queue address (for the
Support
> > queue)
> >
> > support at consumer.com  --  Remote alias used for convenience
> >
> > The support at consumer.com address points to
helpdesk-support at provider.com
> > by way of a "Distribution List" which contains only one "Contact",
the
> > target address.  I'm told this is how one creates an alias on
Exchange
> > without having to create a new mailbox.
> >
> >
> >
> > When Postfix receives mail by way of the alias the headers look
> > something like this:
> >
> > From MAILER-DAEMON  Wed Feb  4 14:21:39 2009
> > Return-Path: <>
> > X-Original-To: testinstance-support at provider.com
> >
> > [etc.]
> >
> > I do see the original destination address further down but that's
> > expected since the message has to originate somewhere.
> >
> >
> >
> > When Postfix receives mail sent to the actual local address, the
> > headers
> > are more complete:
> >
> > From testaccount at gmail.com  Thu Feb  5 09:36:41 2009
> > Return-Path: <testaccount at gmail.com>
> > X-Original-To: helpdesk-support at provider.com
> >
> >
> >
> > I realize this may be a Postfix question but I'm just not sure where
> > to
> > start...  My understanding is that the local delivery agent is
> > responsible for setting the "Return-Path" and "From" headers but I
> > assumed Postfix would do that if necessary.  It is doing this for
> > messages sent directly to addresses.  The remote server is not
setting
> > these headers; I verified by sniffing the SMTP session.
> >
> >
> >
> > Any suggestions would be most appreciated.
> >
> >
> >
> > Thanks very much,
> >
> > Damon
> >
> >
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> 
> --
> Jo Rhett
> Net Consonance : consonant endings by net philanthropy, open source
> and other randomness
>