Problems sending mail to yahoo?

Raymond L. Corbin rcorbin at
Thu Apr 10 19:47:34 UTC 2008

I think it took a few weeks for me to get a reply through that system...I believe their 'Bulk Mail Advocacy' said they are typically 72hours. Try increasing your retries to extend beyond that.


-----Original Message-----
From: owner-nanog at [mailto:owner-nanog at] On Behalf Of Jeff Shultz
Sent: Thursday, April 10, 2008 2:55 PM
To: Barry Shein; NANOG list
Subject: Re: Problems sending mail to yahoo?

Barry Shein wrote:
> Is it just us or are there general problems with sending email to
> yahoo in the past few weeks? Our queues to them are backed up though
> they drain slowly.
> They frequently return:
>        421 4.7.0 [TS01] Messages from MAILSERVERIP temporarily deferred due to user complaints -; see
>     (where MAILSERVERIP is one of our mail server ip addresses)
> Yes I followed the link and filled out the form but after several days
> no response or change.

I got the following auto-response to filling out the form:

"This is an automated message regarding your recent request for Yahoo!
Postmaster Customer Care Support. We have received your message but due
to a temporary problem we wanted to let you know it could take up to a
week until you receive a response. We apologize for this inconvenience.

Thank you for reaching out to us. We look forward to helping you!"

Makes me wonder exactly what their "temporary" problem is... a week of
deferred mail could really stack up.

Jeff Shultz

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