Forum Discussion
Use EOP in Hybrid for incoming and outgoing mailflow
Sounds like you're aiming for this scenario:
From your description it sounds like you'll need to re-run the HCW to turn off centralised transport, and remove your send connectors from on-prem (just the ones that route to your third party service, leave the O365 ones alone).
First of all, big thanks for replying on this topic.
O.K., so looking at the link Paul provided this seems to be a supported scenario.
Last question would be how to modify local exchange to route all outbound mail through EOP and get rid of the 3rd party antispam-appliance. Hybrid wizard created send connector with scope (tenant.mail.onmicrosoft.com). Other send connector with scope * points to 3rd party antispam-appliance.
So do we have to modify the hybrid send connector with scope * then to route all outbound mail through O365? What would be the value for the smarthost were sending to?
Hi Mark,
You can change your send connector to Internet * pointing to Office 365 (MX) record to route all email to Internet using Office 365 EOP.
The best approach to test you can create new Send Connector, put only one domain that you could test and after test with success change the send connector to all.
Seems like it would OK to use the connector that already exists from the HCW.
Can we use the on-premises Exchange 2013 ECP > mail flow > send connectors > Outbound to Office 365 ...
step-1 add one low-impact domain to verify this works.
step-2 later on, add * ("all other domains")
Thanks.
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