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From: Karl Kleinpaste <karl@justresearch.com>
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Subject: Re: Authentication warning on sender ... yuck
Date: 10 Feb 2000 10:27:29 -0500
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One is stuck with either
[a] sendmail sets MAIL FROM:<> to yourname@your.actual.host.name, when
    f-is-evil is t, which can be seriously suboptimal, or
[b] MAIL FROM:<> gets set to what you like, but the foolish auth
    warning gets included in the headers, when f-is-evil is nil.

The right solution would be to get both positive effects, setting the
envelope without creating the warning.  As a "favor" to enhance
"security," the warning is a bad joke.

Since I'm the only user of my machines, tweaking the T lines of
sendmail.cf is an acceptable workaround.  But it's still Wrong to do
so, philosophically.