[rt-users] FW: RT4 Postfix/Apache Email Return-Path causing issues

[Rafal Roginela]

For completeness...

Thank You,
Rafal Roginela
Office (847) 827-9740 x109
Fax (847) 493-8031

From: Rafal Roginela
Sent: Wednesday, March 20, 2013 2:45 PM
To: 'Billington, James'
Subject: RE: RT4 Postfix/Apache Email Return-Path causing issues

Hi,

You can add an MX record for the "servername.domain" and all will be well (it can point to your companies mail sending host in case they want to check for smtp connections), that is a no Linux knowledge answer. Other than that there are impersonation settings in postfix/sendmail that you can set to remove the "servername.domain" part of the problem, if you go the Linux knowledge route. Either way spam filters will be happy with either fix.

This is a shot from the hip since I have no idea what your RT_SiteConfig.pm looks like or any other setting. Hope it helps.


Thank You,
Rafal Roginela
Office (847) 827-9740 x109
Fax (847) 493-8031

From: rt-users-bounces at lists.bestpractical.com [mailto:rt-users-bounces at lists.bestpractical.com] On Behalf Of Billington, James
Sent: Wednesday, March 20, 2013 11:56 AM
To: rt-users at lists.bestpractical.com
Subject: [rt-users] RT4 Postfix/Apache Email Return-Path causing issues

Hello,

I'm not much of a linux guy, but we're having an issue with emails coming from RT to external organizations.

We're running RT 4.0.10 on CentOS 6.3 with Postfix (MailCommand: sendmailpipe) as the email solution. I mostly followed the install guide and prayed during installation and config.

We get tickets from some external sources that when they get the autoreply from us they do a reverse lookup domain check on the Return-Path instead of the From or Reply-To address (All three are present). The Return-Path is apache at servername.domain<mailto:apache at servername.domain>,  so the emails get denied since it's not a valid domain with an external MX record. Then we get the undeliverable message from our external mail servers, complete with the raw header info.

I searched the gossamer archives but didn't find anything solid that helped. Maybe I didn't use the right search terms or something because I imagine this has come up before. How can I fix this? Can I change the Return-Path? Or omit it completely? What are my options here?

Any help is appreciated.

Thanks,


James Billington
Senior Systems Administrator
ManTech

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