How do you stop outgoing spam?

Wed Sep 18 07:01:58 UTC 2002

At 01:33 AM 9/18/2002 -0400, Barney Wolff wrote:
> > 3.  SMTPAUTH does not require an alternate port, yet it is sufficient for
> > ensuring accountability.  Hence it is sufficient for dealing with the
> > reason that port 25 is blocked, without requiring that it be blocked.
>
>I don't understand this reasoning.  The ISP's justification for blocking
>25 except to its own servers is to avoid having its facilities used
>for abuse.  How would the local ISP enforce use of SMTPAUTH to connect
>to some remote ISP?

the claim is that outbound 25 is blocked to prevent spam.  however 
accessing a remote 25 with smtpauth ensures full accountability and, 
therefore, prevents spam.  blocking 25 disables use of this mechanism.

d/

----------
Dave Crocker <mailto:dave at tribalwise.com>
TribalWise, Inc. <http://www.tribalwise.com>
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