For on-premises people that automatically forward from their on-premises email system by means of Microsoft 365, you need to produce a mail movement rule to trace these people. For typical Guidance on how to produce a mail flow rule, see Use the EAC to produce a mail stream rule. Toast https://retroblockbreakeronline13086.topbloghub.com/42877439/how-block-breaker-strategy-tips-can-save-you-time-stress-and-money