This is the Portal's view of every mailbox server, across every entity, that's running the ExSign Transport Agent. Without a server showing up here and connected, its Agent has no way to receive signature and disclaimer rules from the Portal.
This page and Connecting the Transport Agent are two halves of the same task: you generate a server's connection token here, then enter it on the mailbox server itself.
Navigate to the left menu, under View by Entities, click Servers, then + New Server, and provide:

| Field | What to Enter |
| Entity Name | Which entity this mailbox server belongs to |
| Server Name | A friendly name for the server |
Click Save & Generate Token. This creates a one-time token, copy it, or send it directly to an email address, then go to the mailbox server and paste it into the Agent's Authentication Token field to complete the connection (see Connecting the Transport Agent).
The Servers list shows:

| Column | Shows |
| Server Name | Name of the server |
| Connectivity | Whether the server is currently connected or disconnected from the Portal |
| Online Status |
Whether the server is currently online or offline |
| Last Connected Timestamp |
When it last connected |
| Build No | The Agent's build number and release date |
These two actions have a required order; you can't skip straight to deleting a server: