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

Tue Oct 21 22:09:20 UTC 2003

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 at multicasttech.com>
To: "Mike Tancsa" <mike at sentex.net>
Cc: <nanog at 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 at 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 at 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 at 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 at 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 at 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
> >
> >