To configure outbound connectors, ensure that you have an Office 365 administrator account.
Some organizations use Microsoft Office 365 to remotely host their email architecture, allowing Microsoft to manage the day-to-day aspects of maintaining their email servers. Hosted Email Security integrates with Office 365 to provide additional security and benefits.
Configure Office 365 connectors to allow email traffic to and from Hosted Email Security MTAs.
Consult the Microsoft Office 365 help for information about adding connectors. Some Office 365 plans do not offer connectors.
The Exchange admin center screen appears.
By adding an outbound connector, you can configure Office 365 to relay outbound mail to Hosted Email Security for filtering and delivery to recipients outside of your Office 365 managed domain.
A new connector configuration screen appears.
For example, type Hosted Email Security (Outbound).
Europe, the Middle East, Africa: relay.hes.trendmicro.eu
All other regions: relay.hes.trendmicro.com
The New connector confirmation screen appears, displaying all the settings that you have configured.
After the validation process completes, the Validation Result screen displays.