Forum Discussion
Exchange Onpremises Transport Rule
Hi All, I am trying to create a transport rule in Onpremise Exchange environment, so that the rule applies to only recipients whose hosted in Onprem Exchange environment and not in office365. So...
Where is your MX record is pointed to O365 or your Ex on-premises ?
It is pointed to our proofpoint servers which ultimately routes those mails into our Onprem Exchange.
- So, based on your email routing configuration every email whether from on-prem or from O365 needs to route to on-prem through Proofpoint servers and then go out to the external recipients. that mean that on-premises transport rules will continue to evaluate messages sent to or from mailboxes housed in Office 365 and your on-premises and o365 mailboxes will be considered as inside the organization.
- In that case, how would i restrict the rule to trigger for only Onprem mailboxes?
- you need to verify your mail flow first for the email send from O365 if its redirected to onprem or its send directly to the internet. if this is case that the transport rule will evaluate only the onpremises users