[TFDA] Yahoo.com addresses should work again...

Alan Hoyle alanh at email.unc.edu
Thu Feb 28 15:35:05 EST 2008


Yahoo emails will most likely work again, but it is probable that
those addresses have been disabled because of Yahoo bouncing back
emails.  This problem was not isolated to UNC/ibiblio.

-alan


---------- Forwarded message ----------
From: Stephen Braswell <sbraswe1 at email.unc.edu>
Date: Thu, Feb 28, 2008 at 3:09 PM
Subject: Re: [ctc] Problems with mailing TO yahoo.com addresses?
To: The ctc mailing list <ctc at listserv.unc.edu>


Hi everyone,

 A quick update on the problem with sending email to @yahoo.com email
 addresses.  It appears the issue has been corrected for now, at least on
 the ITS outgoing SMTP gateways.  Email destined to Yahoo email accounts are
 being delivered on first attempts again.

 Also, there are people at Yahoo looking into this issue since multiple
 email sites (both universities and other organizations) were off and on
 having trouble sending email to Yahoo accounts over the past few weeks.
 I've included an excerpt below of an email from one of Yahoo's product
 managers that was sent to a mailing list of higher education email
 administrators.  He states they have been tweaking their systems to
 compensate for this issue.


 -Stephen

 ----

 I've been reviewing the comments regarding mail delivery to Yahoo! over
 the past few days and wanted first to apologize for the inconvenience
 and second to assure you that we are working furiously behind the scenes
 to remedy the issue as quickly as possible. Below is some background on
 what's causing the mail deferrals and the steps we have taken and are
 taking:

 * While we do not have a greylisting policy, our antispam systems have
 been experiencing issues which may resemble greylisting behavior. Our
 goal is to accept legitimate mail on the first attempt, and not to cause
 queueing on the sending end. In fact, the actual issue is that we've
 imposed tighter anti-spam controls which occasionally generate temporary
 failure replies when IPs demonstrate behavior that our systems recognize
 (erroneously, in your cases) as spam.

 * The vast majority of senders' mail is getting through to our users
 unimpeded. While there are certainly organizations that are receiving an
 excessive number of erroneous deferrals and "temporary failure" reply
 codes, there are no reports of messages not being delivered. As we
 continue making urgent fixes to the system over the upcoming hours and
 days, these backlogged messages will be delivered and your outbound
 queues will drain.

 We have made a number of significant adjustments over the past several
 days to address these issues, and believe that most of the deferral
 behavior is on the decline.

 ---
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-- 
  Alan Hoyle  -  alanh at unc.edu  -  http://www.alanhoyle.com/


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