[112392] in North American Network Operators' Group
Re: Yahoo and their mail filters..
daemon@ATHENA.MIT.EDU (Jeff Shultz)
Wed Feb 25 12:58:44 2009
Date: Wed, 25 Feb 2009 09:58:20 -0800
From: Jeff Shultz <jeffshultz@wvi.com>
To: Micheal Patterson <micheal@spmedicalgroup.com>,
NANOG list <nanog@nanog.org>
In-Reply-To: <7DDB2D20E26842B491F4D4D1C5264F77@dredster>
Errors-To: nanog-bounces@nanog.org
Micheal Patterson wrote:
> This may be old news, but I've not been in the list for quite some time.
> At any rate, is anyone else having issues with Yahoo blocking /
> deferring legitimate emails?
>
> My situation is that I host our corporate mx'ers on my network, one of
> the companies that we recently purchased has Yahoo hosting their domains
> mail. Mail traffic to them is getting temporarily deferred with the "421
> 4.7.0 [TS01] Messages from xxx.xxx.xxx.xxx temporarily deferred due to
> user complaints - 4.16.55.1;
> see http://postmaster.yahoo.com/421-ts01.html"
>
> The admin of the facility has contacted Yahoo about this but their
> response was for "more information" when they were told that traffic
> from my mx to their domain was to being deferred. I may end up just
> having them migrate to my systems just to maintain company
> communications if we can't clear this up in a timely manner.
>
> --
> Micheal Patterson
Yep, it's been happening to us - various explanations - and I've got at
least one annoyed customer because of it.
--
Jeff Shultz
