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How to whitelist email in Microsoft Exchange 2013 or 2016

How to whitelist email in Microsoft Exchange 2013 or 2016
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How to whitelist email in Microsoft Exchange 2013 or Exchange 2016
 
If you are having problems with email messages bouncing (not delivering) when using Microsoft Exchange 2013 or 2016, please follow the steps below to add the sending email servers to the whitelist.
 
  1. Open the Exchange Management shell.
  2. Run the following command:
  • Add-IPAllowListEntry –IPAddress 167.89.85.54

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