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

[Billington, James]

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

________________________________
This e-mail and any attachments are intended only for the use of the addressee(s) named herein and may contain proprietary information. If you are not the intended recipient of this e-mail or believe that you received this email in error, please take immediate action to notify the sender of the apparent error by reply e-mail; permanently delete the e-mail and any attachments from your computer; and do not disseminate, distribute, use, or copy this message and any attachments.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.bestpractical.com/pipermail/rt-users/attachments/20130320/046550d5/attachment.htm>