#4.4.7 smtp 400 Message delayed for incoming mails

powvex

• January 17, 2020 03:59

I'm getting this error for all mails coming from one specific sender. I cant find them in my logs, and all I've received is from customer side error he get. I dont have greylisting enabled, and I've also whitelisted their IP in spamassasin configs, but no luck. Any advise??

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  cPanelLauren

  • January 20, 2020 17:52

  Hello, Is there any output in the exim logs for this? This really isn't enough information to provide you with assistance. You can find the exim logs at /var/log/exim_mainlog
  and the following thread may be helpful at guiding you toward what sort of information is most useful

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  powvex

  • January 21, 2020 08:11

  Hello, Is there any output in the exim logs for this? This really isn't enough information to provide you with assistance. You can find the exim logs at /var/log/exim_mainlog
  and the following thread may be helpful at guiding you toward what sort of information is most useful

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  keat63

  • January 21, 2020 13:59

  Could a firewall be blocking him by any chance ?

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  cPanelLauren

  • January 21, 2020 16:57

  If there's no data in the exim logs for the transaction then it's never reaching your server. Either the mail is going to the wrong destination or there is an external appliance (like a hardware firewall) blocking him.

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  rackaid

  • January 21, 2020 17:35

  See if you can get the full error from the end customer, sometimes it contains the IP of the server sending the error. I have seen this as some larger corporate networks where they use gateways to filter outbound email. If you get the full message, you may be able to determine that it is not your server sending this reply.

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