I recently configured an Exchange hybrid environment for a customer who was running Exchange 2010. The customer was using a 3rd party mail filtering service to route all outbound email. The customer wanted to discontinue paying for the 3rd party service and route all outbound email via Office 365.
To set up the hybrid environment, I ran the Exchange Hybrid Configuration Wizard (HCW). The HCW creates an Exchange outbound connector to route all email for your hybrid domain via Office 365. It also creates inbound and outbound email connectors in Office 365.
By design, the HCW does NOT change all outbound mail flow. It only affects mail flow for the email domain that is part of the hybrid configuration. All other outbound email works as it did before running the HCW. This means that the client was still using their 3rd party mail filtering service.
In order to route ALL outbound email via Office 365, I had to do the following:
1) Create a new outbound connector on the Exchange Server
2) Delete the outbound connector that routes email to the 3rd party mail filtering service
3) Delete the outbound connector that was created by the HCW
Here are the connector settings required to route all outbound email via Office 365:
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Name My company to Office 365
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FQDN mail.contoso.com
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SmartHosts contoso-com.mail.protection.outlook.com
If you want to set this up in your own environment, you will need to replace contoso with the name of your hybrid domain.
If you would like to set up a hybrid environment between your Exchange Server and Office 365, please contact H Tech Solutons for assistance.
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