There are five steps to enabling Inline DLP: set up Exchange Online in Skyhigh Security Cloud, route email from Office 365 to Skyhigh Security Cloud, route email back after scanning, create a mail routing rule in Office 365, and test the setup.
To allow the proper flow of email traffic set up a new connector in Office 365. You can learn more about connectors at Configure mail flow using connectors in Office 365.
For details about product features, usage, and best practices, click ? or Help.
Select Settings → Service Management.
Click Microsoft Exchange Online.
If Exchange Online has been configured, click Default. Otherwise click New Instance.
Click Setup, then click Configure.
On the Business Requirements screen, select Inline Only. Click Next.
Review the prerequisites, then select I have reviewed all prerequisites and click Next.
Now add domains that are used for Trellix DLP. Add the Microsoft Exchange Online domain(s), then the email domain associated with your ePO - On-prem deployment. Next, enter a value for Host Name and the Port. Make sure that the automatically-generated Skyhigh Security Cloud Email Server Domain is correct. Click Next..
For Quarantine Settings, you can enter an optional email address where quarantined files are sent. To enable this option, select Quarantine Emails and Attachments, then type the email address. Click Next.
On the Summary screen, make sure all settings are correct. Click Done.