Exchange Server Allow Lists
To ensure email from certain domains are delivered reliably requires several commands, to cover the various reasons why email may be blocked.
- Open Exchange Management Shell.
To bypass content filtering:
Set-ContentFilterConfig -BypassedSenderDomains domain.com,domain2.com
To bypass SPF filtering:
Set-SenderIDConfig -BypassedSenderDomains domain.com,domain2.com
Note these commands overwrite the existing settings so to add further domains they must all be included in the single command. Keep a text file containing the commands so they can be added to easily.
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