Change the number of seconds that Trellix DLP Network Prevent – SaaS tries to connect with an MTA.
By default, Trellix DLP Network Prevent – SaaS tries to connect for 20 seconds. If a connection can't be made in that time, there is an issue with either the network or the MTA that must be investigated.
In ePO - SaaS, open the Policy Catalog.
Select the DLP Appliance Management product, choose the Trellix DLP Network Prevent Email Settings category, and open the policy that you want to edit.
In Connection Settings → Onward connection, type the number of seconds that Trellix DLP Network Prevent – SaaS can spend trying to connect to an MTA.
Click Save.