nanog mailing list archives
Re: How do you stop outgoing spam?
From: Dave Crocker <dhc2 () dcrocker net>
Date: Wed, 18 Sep 2002 00:01:58 -0700
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 () tribalwise com> TribalWise, Inc. <http://www.tribalwise.com> tel +1.408.246.8253; fax +1.408.850.1850
Current thread:
- Re: How do you stop outgoing spam?, (continued)
- Re: How do you stop outgoing spam? sal . sabella (Sep 10)
- Re: How do you stop outgoing spam? alex (Sep 10)
- RE: How do you stop outgoing spam? Al Rowland (Sep 10)
- RE: How do you stop outgoing spam? alex (Sep 10)
- Re: How do you stop outgoing spam? Majdi S. Abbas (Sep 10)
- Re: How do you stop outgoing spam? Richard A Steenbergen (Sep 10)
- RE: How do you stop outgoing spam? Al Rowland (Sep 10)
- Re: How do you stop outgoing spam? Dave Crocker (Sep 16)
- Message not available
- Re: How do you stop outgoing spam? Dave Crocker (Sep 16)
- Message not available
- Re: How do you stop outgoing spam? Dave Crocker (Sep 17)
- Re: How do you stop outgoing spam? Barney Wolff (Sep 17)
- Re: How do you stop outgoing spam? Dave Crocker (Sep 18)
- Re: How do you stop outgoing spam? Barry Shein (Sep 18)
- Re: How do you stop outgoing spam? Barney Wolff (Sep 17)
- Message not available
- Re: How do you stop outgoing spam? Dave Crocker (Sep 18)
- Message not available
- Re: How do you stop outgoing spam? Dave Crocker (Sep 18)