nanog mailing list archives

Re: Heads-up: AT&T apparently going to whitelist-only inbound mail


From: "Brian Bruns" <bruns () 2mbit com>
Date: Tue, 21 Oct 2003 18:09:20 -0400


I'm getting nothing but timeouts at this point to any of att's mail servers.
Nothing going through at all.
--------------------------
Brian Bruns
The Summit Open Source Development Group
Open Solutions For A Closed World / Anti-Spam Resources
http://www.sosdg.org
ICQ: 8077511
----- Original Message ----- 
From: "Marshall Eubanks" <tme () multicasttech com>
To: "Mike Tancsa" <mike () sentex net>
Cc: <nanog () nanog org>
Sent: Tuesday, October 21, 2003 5:57 PM
Subject: Re: Heads-up: AT&T apparently going to whitelist-only inbound mail



Here is my experience (names are changed to protect...) :

Failed to deliver to 'AAA () att com'
SMTP module(domain att.com) reports:
  message text rejected by ckmsi2.att.com:
  550 5.7.1 Your message was rejected as possible spam. Please call your
AT&T contact. [3]

Failed to deliver to 'BBB () att com'
SMTP module(domain att.com) reports:
  message text rejected by ckmsi2.att.com:
  550 5.7.1 Your message was rejected as possible spam. Please call your
AT&T contact. [3]

Failed to deliver to 'CCC () att com'
SMTP module(domain att.com) reports:
  message text rejected by ckmsi2.att.com:
  550 5.7.1 Your message was rejected as possible spam. Please call your
AT&T contact. [3]

Failed to deliver to 'DDD () att com'
SMTP module(domain att.com) reports:
  message text rejected by ckmsi2.att.com:
  550 5.7.1 Your message was rejected as possible spam. Please call your
AT&T contact. [3]

Failed to deliver to 'EEE () att com'
SMTP module(domain att.com) reports:
  message text rejected by ckmsi2.att.com:
  550 5.7.1 Your message was rejected as possible spam. Please call your
AT&T contact. [3]




On Tuesday, October 21, 2003, at 05:46 PM, Mike Tancsa wrote:



Wow, this sounds like a pretty extreme shotgun approach. (or is it
April 1st somewhere).  Is AT&T going to make this whitelist publicly
available ?  Perhaps if there was some global white list that everyone
could consult against, it might be a little more useable.  Still, what
do you do about multi-stage relays ?

        ---Mike





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