Forum Discussion
marking emails as internal vs external when using mass mail provider
Hi folks ! In our tenant, we have activated a rule that warns users when received emails are from an external source, and this works quite well. However, we have departments that use external mas...
you can add exclusion in your transport rule if the email sent by the specific email address and also you can add the specific email header from the value to exclusion in transport rule.
You can either use a transport rule to mark the traffic from this source as trusted, or user Enhanced filtering for connectors:
https://docs.microsoft.com/en-us/exchange/mail-flow-best-practices/use-connectors-to-configure-mail-flow/enhanced-filtering-for-connectors
https://docs.microsoft.com/en-us/exchange/mail-flow-best-practices/use-connectors-to-configure-mail-flow/enhanced-filtering-for-connectors