North American Network Operators Group
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Re: Problems sending mail to yahoo?

  • From: Jeff Shultz
  • Date: Thu Apr 10 15:54:18 2008

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 - 4.16.55.1; see http://postmaster.yahoo.com/421-ts01.html

(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