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Re: Qmail and Bounce Message Spamming

To: qmail@list.cr.yp.to
Subject: Re: Qmail and Bounce Message Spamming
From: Charles Cazabon <qmail@discworld.dyndns.org>
Date: Sun, 1 Apr 2007 21:21:12 -0600
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Scott Dudley <scott@sdudley.com> wrote:
> 
> [...] one thing that I continue to see that troubles me is qmail-smtp
> accepting messages with an empty envelope sender as long as the recipient is
> a valid local user:

Why does that trouble you?  *Every* MTA should do that.

qmail doesn't care about the envelope sender address (with the exception of
the trivial blacklist that is control/badmailfrom).  If a message, regardless
of its envelope sender, has a valid, local/virtual recipient address, the
message is accepted and delivered.  And that's exactly what it's job is.

> Please enlighten me.

Please explain why you think this perfectly normal MTA behaviour is a problem.

Charles
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Charles Cazabon                               <qmail@discworld.dyndns.org>
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