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

[Jo Rhett]

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