You can set an Alternate secure route to use a third-party encryption service of your choice for messages that require TLS. To set this up, hover over the section and click CONFIGURE to add the details of the encryption service. Bear in mind that you can only set one route for this purpose:

Start by setting a short description for the encryption service, enable the Use alternate secure route when secure transport (TLS) is required option, and then select the mailing route or choose to add a new one. We will talk more about how to add email routes in the following sections, where we will explore the Hosts tab:

You can now define more detailed inbound, outbound and internal routing policies. In the next section we will learn how to define