conover(_at_)rahul(_dot_)net writes:
Does anyone know the RFC that defines the precedence of the return
addresses generated by:
formail -rzx
and:
formail -rtzx
There is no rfc for formail's behavior. It uses an order derived from
rules in rfc2822/822, plus some practical and historical considerations.
The actual orders are---as of 3.14---as follows, from most preferred to
least preferred:
formail -r: (envelope sender)
"From "
Return-Path:
Errors-To:
Return-Receipt-To:
Path:
Resent-Sender:
Resent-From:
Resent-Reply-To:
Sender:
From:
Reply-To:
formail -rt: (header sender)
Reply-To:
From:
Sender:
Return-Path:
"From "
Errors-To:
Return-Receipt-To:
Path:
Resent-Sender: Resent-From: Resent-Reply-To: (same weight)
The latter is actually encoded in the source as a bar graph; take a look
at src/formail.c, line 60 or so.
Philip Guenther
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