MTA error no reported to user

evilside · Post by **evilside** » Wed Jul 26, 2017 7:52 pm

Hi

My server can't sent messages to mx05-2.cloudcompany.com server, the logs show me this error:

Jul 26 12:24:08 mail-1 postfix/smtp[22511]: 93BE2D800E2: to=<sales2@anycompany.com>, relay=mx05-2.cloudcompany.com[199.541.76.xxx]:25, delay=921, delays=911/0.07/4.6/5.3, dsn=4.0.0, status=deferred (host mx05-2.cloudcompany.com[199.541.76.xxx] said: 450 Try again later (in reply to end of DATA command))

My question is: ¿Why the sender is not notified about this error?

DualBoot · Post by **DualBoot** » Thu Jul 27, 2017 7:51 am

Hello,

450 is a temporary failure error, so bounce will be sent when retry limit will be reached.

Regards,

evilside · Post by **evilside** » Thu Jul 27, 2017 4:30 pm

Thanks, Do you know how I can set the maximum time for to alert?

DualBoot · Post by **DualBoot** » Thu Jul 27, 2017 9:30 pm

You can not, the limit here is on the remote server.

evilside · Post by **evilside** » Thu Jul 27, 2017 10:02 pm

I found how to set the times...

https://wiki.zimbra.com/wiki/Tuning_Pos ... e_Settings

The default value of maximal_queue_lifetime was five days, it is too much.

DualBoot · Post by **DualBoot** » Thu Jul 27, 2017 10:06 pm

Sorry, I made a mistake, you can set it on your side and the default value is 5 most of the time.

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MTA error no reported to user

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