PowerMTA Support Forum

General Category => General Discussion => Topic started by: FMG123 on July 19, 2013, 04:11:47 PM

Title: 451 Resources temporarily unavailable. Please try again later [#4.16.1]
Post by: FMG123 on July 19, 2013, 04:11:47 PM

Hi!. A question for everyone and specially the forum experts like Teneo and Calvin :) ... I'm seeing a lot more of these errors on yahoo lately. Does anyone know why they show up and what they exactly mean (and of course how to reduce them :) ). Thanks a lot in advance!!!!

Title: Re: 451 Resources temporarily unavailable. Please try again later [#4.16.1]
Post by: CaLViN on July 19, 2013, 04:27:17 PM

http://forum.port25.com/general-discussion/yahoo-420-resources-unavailable-temporarily/msg8722/#msg8722


http://forum.port25.com/general-discussion-1/yahoo-has-reported-some-connectivity-issues-with-some-of-their-mx%27s/msg4595/#msg4595

Title: Re: 451 Resources temporarily unavailable. Please try again later [#4.16.1]
Post by: FMG123 on July 19, 2013, 06:00:16 PM

Thanks Calvin!. What is weird is that I'm not seeing any other errors on those IPs (no gl01s or TSs...). Just this "transient" error. Do you think I should back off on it? Thanks!

Title: Re: 451 Resources temporarily unavailable. Please try again later [#4.16.1]
Post by: CaLViN on July 19, 2013, 06:05:49 PM

If you are not getting any other errors,it is possible that yahoo is having problems.
Keep monitoring your logs then.

Title: Re: 451 Resources temporarily unavailable. Please try again later [#4.16.1]
Post by: VIN786 on July 22, 2013, 04:33:36 PM

These errors are absent from our servers, wonder if you are sending any attachments and have you checked the hard bounces, are they more than usual, like bad email addresses?

Title: Re: 451 Resources temporarily unavailable. Please try again later [#4.16.1]
Post by: VIN786 on July 22, 2013, 04:36:01 PM

Yahoo has disabled a whole bunch of inactive users, I think it is about 7% and the last day for inactive users (to stay active) to login was July 15th, did you start seeing the errors after this date?

Title: Re: 451 Resources temporarily unavailable. Please try again later [#4.16.1]
Post by: FMG123 on July 23, 2013, 02:51:03 PM

Hi VIN786. No, it was not on that date specifically. It seems like a random thing. One day we see a lot of them and the following day only a few. Actually, when we see more, we also see a bunch more activity (opens and clicks). And the lists we send don't really change that much so I wouldn't say its a matter of name composition. A real puzzle ... As Calvin said, I think its more related to yahoo's mx's performance. Are you also seeing these errors?.