When an admin goes to Confluence Admin > Mail Servers they can add an SMTP server to be used for sending notifications of watches. However, after 1 server is added, the "Add a new SMTP mail server" link allows numerous subsequent servers to be added, despite the fact that the function of these additional servers is unclear. It appears only the 1st server in the list is used to send notifications and that the other servers don't have any function.

The ability to add multiple SMTP servers should be removed as it is misleading and confusing to users.