You must configure email server certificates because EmailServers requires certs to authenticate access applicable to TLS email connections. You can configure certificates for both on-premise and Microsoft Office 365 servers.
Procedure
On the System Manager web console, click Services > Inventory > Manage Elements.
On the Manage Elements page, select the check box for one of the nodes of Avaya Oceana® Cluster 3, and click More Actions > Manage Trusted Certificates.
On the Manage Trusted Certificates page, click Add.
On the Add Trusted Certificate page, perform the following steps:
Click Import using TLS.
In IP Address, enter the IP address of your Email server.
In Port, enter the secure port number 443.
Click Retrieve Certificate.
Click Commit.
Repeat Step 2 to Step 4 for the other node of Avaya Oceana® Cluster 3.