The 421 being given by the Yahoo servers is as a result of ongoing 550
On receiving a 550, surgemail retries sending a number of times - only
producing more 550 errors - legitimately.
This continues until Yahoo servers temporarily deny emails being sent from
my server preventing real email being sent.
How do I stop surge mail retrying 5xx errors ???
On 25/07/11 11:22 PM, "Lyle Giese" HIDDEN@crcomputer.info> wrote:
>this has nothing to do with the quality of the email addresses going to
>Yahoo. (I have some large lists and get this all the time from yahoo).
>The error you are getting is a 421 error, not a 5xx series error. 400
>series errors are temporary failures and should be retried. 500 series
>errors are fatal errors and should not be retried.
>But in this case, it's a 421, so a retry is in order.
>Yahoo plays by it's own rules and there doesn't seem to be much anyone
>can do about it and it's almost impossible to contact an intelligent
>To mitigate this problem, I use g_send_tolimit to limit yahoo sends to
>300 per hour and that helps.
>LCR Computer Services, Inc.
>On 07/24/11 22:49, SurgeMail Support wrote:
>> If using dlist then set for each list:
>> bounce_remove "true"
>> To automatically remove the failures...
>> On 22/07/2011 10:22 p.m., surgemailHIDDEN@etwinsite.com wrote:
>>> Hi All ... hoping someone can help me out ...
>>> Recently my email server has been receiving the following error when
>>> sending to Yahoo:
>>> 421 4.7.0 [TS01] Messages from 220.127.116.11 temporarily deferred due
>>> to user complaints - 18.104.22.168; see
>>> I went to the referred site and completed their first form, upon which
>>> I received an email referring me to read:
>>> Within this page Yahoo requests ...
>>> Don't retry 5xx messages. If we reject a message with a 5xx error, we
>>> will not accept it anytime soon. Retrying the message wastes both our
>>> resources and makes you appear to have a dirty list.
>>> How do I config surgemail to not send retry when receiving a 5xx
>>> My user base is such that they are lazy and IT incompetent - being
>>> that they dont check email addresses, they dont care for bounce back
>>> messages, and they simply dont get it. Consequently, my email server
>>> queue is full of 550 bounce backs which explains the damaged
>>> reputation of my email server.
>>> Any advice would be really appreciated.
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