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messages to some domains are delivered with delay

  • 1.  messages to some domains are delivered with delay

    Posted Oct 03, 2024 09:20 AM

    Hi!

    I have 2 domains who receive e-mails from our organization with delays. Attempts ends with 450 4.4.1 [internal] connection timed out  or  with 421 4.4.0 [internal] failed to connect: no mail servers for this domain could be reached at this time

    After multiple tries message finally got delivered. 

    Can anyone help how to troubleshoot such problem? Which log files can help find out reasons? Has SMG SMTP transaction logs where I may see communication process between my and recipient server?