From: Alex van den Bogaerdt (alexergens.op.het.net)
Date: Tue Jun 01 2004 - 18:56:54 CDT

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On Tue, Jun 01, 2004 at 11:25:28AM -0500, Jay Maynard wrote:
> On Tue, Jun 01, 2004 at 06:05:37PM +0200, Alex van den Bogaerdt wrote:
> > Note that "the following changes" are allowed at the origin, not on an
> > intermediate relay!
>
> How about the destination? You keep talking about destination SMTP servers
> as though they are intermediate relays. Is this, in fact, what the RFC
> intends?

Where am I talking about "destination SMTP servers" ?

But even then: The RFC allows, when being cautious, to alter the body
when the MTA is the first one encountered _only_; initial submission.
This is a "MAY" in that case, i.e. optional.

It specifically forbids altering/adding Message-ID, "From:" and "To:"
when the MTA is an intermediate relay. This is a "MUST NOT" which is
as strong as it gets.

I run postfix as an intermediate relay; I'm sure I'm not alone. Let's
face it: postfix _is_ a good program. That doesn't mean it is perfect.

I know next to nothing (nor does postfix) about the client connecting
over the internet. Why would I want to add -my- domain to the headers?
Why confuse my users?

cheers,
Alex
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