[Exim] rewriting the From:

While investigating the down-casing in rewriting rules I also noticed that the check
to see if the From: header matches the login username for local submission appears
to be using the From: after it has been through the rewriting rules.

This means that rewriting the From: will generally force a Sender: line to be added
to the header, even though the From: line, as submitted, did contain the submitting
user's username.

This is only a very minor issue and cannot be called a bug but it would be tidier, I
feel, if the Sender: were only added if the From:, as submitted by the user, was
checked.

Phil.
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Phil Chambers (postmaster@???)
University of Exeter