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O365 Exchange sender domains restriction
Hello, I have problem how to setup restriction on Exchange online : " no e-mail from an unauthorized domain is allowed". I tried it setup in Rules , but I dont see any possibility for these kind od...
If the idea is to only allow messages from specific domains, best use Mail flow rules, where you can add those domains as "exceptions".
YES, Thank you very much Vasil, sometimes the things are simple ...
Good luck
Good luck