Mails are getting delay at Edge Servers

Noyon Chandra Das 336 Reputation points
2023-07-23T11:50:13.2366667+00:00

Hello,

After analyzing the mail header found that mails are getting delayed at the Edge server. Attached screenshot.

Also checking at the network end, there have been no delay.

Please help me to mitigate this issue.

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Exchange Server
Exchange Server
A family of Microsoft client/server messaging and collaboration software.
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Microsoft Exchange Hybrid Management
Microsoft Exchange Hybrid Management
Microsoft Exchange: Microsoft messaging and collaboration software.Hybrid Management: Organizing, handling, directing or controlling hybrid deployments.
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Accepted answer
  1. Andy David - MVP 152.3K Reputation points MVP
    2023-07-23T14:46:31.4666667+00:00

    Enable the protocol logs for the receive connector on the Edge Servers and see if they are seeing these messages.

    If so, it should tell you why its not accepting them:

    https://learn.microsoft.com/en-us/exchange/mail-flow/connectors/configure-protocol-logging?view=exchserver-2019

    IF you do not see them in the SMTP protocol logs, then open a ticket with 365 support. IF you are a 365 customer already, you can also look at the mail flow insights in EAC online:

    https://learn.microsoft.com/en-us/exchange/monitoring/mail-flow-insights/mail-flow-insights

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