On Fri, 1 Feb 2002, peter green wrote:
> What is the purpose of the NO_MX_FOR_FROM test? It can check for a forged
> from, true... but wouldn't it make as much (or more) sense to test the
> envelope sender for MX, since that's where bounces might go?
The envelope domain in a spam is usually forged, but it will still be a
real domain name. If a spammer used a non-existant domain in the
envelope, he couldn't spam AOL. Also he couldn't spam anyone running a
reasonably current version of Sendmail. Those spams would be rejected
during SMTP instead of being handed to SA.
Bill <[EMAIL PROTECTED]>
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