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<0A78B84D9FDBFE41A53D4389657AACA0BB4E44(_at_)radon(_dot_)vidius(_dot_)co(_dot_)il>
"Arik Baratz" <arikb(_at_)vidius(_dot_)co(_dot_)il> writes:
-----Original Message-----
From: wayne [mailto:wayne(_at_)midwestcs(_dot_)com]
Adding the Return-Path: header is not required and many MTAs don't do
it. Some use Sender: instead, some many use things like
Envelope-From:. I forget all the variations.
To me it seems like it IS required. From RFC2821 section 4.4:
This is very good news, thanks for the correction!
If an MTA doesn't support it, it must be reported as a non-compliance
issue to the maintainer.
Unfortunately, a quick review of NANAS shows that a large percentage
(30-50%) of the posts there do not have a Return-Path: header. So,
whether it is required or not, you can't depend on having it.
-wayne
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