troubleshooting Question

Yahoo blocking email (Resources Temporarily Unavailable)

Avatar of benseb
benseb asked on
Email Software
3 Comments1 Solution2187 ViewsLast Modified:
Hi

Yahoo have told me (via the feedback form) that our mail server is temporarily 'deprioritized'

This means that the first few times we connect to the mail server, we get a 451: Resources Temporarily Available, pleae try again later' message (after sending the message). We then have to retry and it seems to accept the message just before its due to expire.

I have asked Yahoo what the reason would be, but they only send generic responses. We have rDNS setup, and an SPF but no luck. Anybody had any experience with this?

Here's a conversation:

220 mta155.mail.re2.yahoo.com ESMTP YSmtp service ready
EHLO aston.voodoo.uk.com
250-mta155.mail.re2.yahoo.com
250-8BITMIME
250-SIZE 31981568
250 PIPELINING
MAIL From:<ben@voodoo.uk.com>
250 sender <ben@voodoo.uk.com> ok
RCPT To:<bsebborn@yahoo.com>
250 recipient <bsebborn@yahoo.com> ok
DATA
354 go ahead
From: ben@voodoo.uk.com
To: bsebborn@yahoo.com
Subject: Test from voodoo
 
This is atest
.
451 mta155.mail.re2.yahoo.com Resources temporarily unavailable. Please try again later [#4.16.5].
QUIT
221 mta155.mail.re2.yahoo.com
Connection closed by foreign host.

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