John Fawcett wrote:
There should only be one Return-Path header and that should be written
by the final delivery agent, so there isn't much alternative here.
<snip>
Return-Path headers should only be used for final delivery,
so should not be added to forwarded messages. However MTAs should
remove existing Return-Path headers, so I doubt this will be a
problem.
I tried this - disabled addition of return-path in postfix (removed the R
flag). This solves the problem with 2.9, but then my emails end up with no
return-path at all (both under 2.7 and 2.9). I am currently back to 2.7, with
return-path append enabled in the MTA (it considers dbmail-smtp the final
delivery).
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