Server Fault is a question and answer site for system and network administrators. It's 100% free, no registration required.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

Just wondering if I should build my delivery reputation over return-path email address domain (by keeping it same in every campaign delivery) or can I change it regularly?

Any thoughts?


share|improve this question
What do you mean by changing? Local part, domain part or both? – mailq Oct 2 '11 at 19:54

On my systems not. On others surely. But on others maybe not. Who cares?!

Deliverability is way too localized to be answered by "yes" or "no". You should probably better look at other top10 deliverability tips than this one.

share|improve this answer
Agreed, though one thought is that some systems will check SPF for envelope from and header from, reply-to, and sender. My personal system checks the first three of that. At work we only check the envelope from. As you said, everyone does something different. – Chris S Oct 2 '11 at 21:01

No, it doesn't. Return-Path have nothing common with any reputation

share|improve this answer
Says who? Any reference? How do you know how I handle this on my mail server? – mailq Oct 2 '11 at 21:16
Agree! Do you have any reference to your answer? Just wondering if return-path is only important for tracking bounces or have affect on delivery reputation as well (not mentioning about SPF, wondering about reputation). – Cem Oct 2 '11 at 21:31
RFC 2821 (stanadards track) p 4.4 states requirements to return-path field and it's usage. NDR-address just used as expected, where reputation was hidden here I can't imagine – Lazy Badger Oct 3 '11 at 12:58

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.