email delivery problems to yahoo accounts

Bob Crain · 05-05-2007, 01:17 PM

Hey guys,

I got a huge amount of undelivered emails today (over 200 so far and usually it's less then 1/4 that). Anyway, I went through them all and 169 of them had the following error message from yahoo accounts:

Delay reason: SMTP error from remote mail server after initial connection:
host g.mx.mail.yahoo.com [209.191.88.239]: 421 Message from (our mailer ip) temporarily deferred - 4.16.50. Please refer to http://help.yahoo.com/help/us/mail/defer/defer-06.html

We have an opt in service and I was wondering if we need to put the mail server IP address on a white list for Yahoo?

Aaron · 05-07-2007, 03:39 PM

Hi Bob,

I am assuming that these undelivered emails came from the automatic listing update emails?
Sounds to me like they are seeing those emails as spam.
We could implement some more of their "best practice recommendations" to help them get through.

REW Fergus · 05-10-2007, 12:23 AM

Please note that these are not undelivered e-mails. They are delayed. Basically, the Yahoo! e-mail system is treating them as lower priority e-mails. These e-mails should be delivered at a later time. When precisely is something only Yahoo! knows.

Bob Crain · 05-10-2007, 11:37 AM

Quote:

Originally Posted by REW Fergus

Please note that these are not undelivered e-mails. They are delayed. Basically, the Yahoo! e-mail system is treating them as lower priority e-mails. These e-mails should be delivered at a later time. When precisely is something only Yahoo! knows.

The delevery of these emails needs to be in a timely manner. Especially for those buyers who are right now buyers. I understand it is a delayed message. I went to the above mentioned link and it says:

Quote:

If you are seeing the error code "421 Message from x.x.x.x temporarily deferred" or "451 Message temporarily deferred" in your SMTP logs, this indicates that the message you attempted to send was not accepted at Yahoo!. It is not a permanent error; your system will automatically re-try later.

If you are seeing this same error consistently over an extended period of time, and you feel that your policies and practices comply with our guidelines (described below), we would encourage you to contact us with detailed information so that we can help diagnose your problem.

For bulk mailers, please visit this page to review our best practice recommendations and, if appropriate, request assistance.

If your mail server does not primarily send bulk mailings (e.g., you run a personal, corporate, educational, or ISP mail server), please fill out this form instead.

So, does the mail server primarily send buld mailings? If not, we can consider it a Corporate or ISP mail server? If so then there is a simple form to fill out isn't there?

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