Follow these steps:
- From the Go menu, choose Go to Folder.
- Type: /Library/Scripts/Mail Scripts
- Click Go.
- Locate the file "Manage SMTP Servers.scpt" that is in this folder, and open it. The Script Editor opens.
- Click the Run button.
- Once the script locates SMTP servers that are unused, a dialog box appears that says:
"Choose one or more SMTP servers to delete. None of these servers are being used by your POP or IMAP accounts."
- Select the server(s) to remove, and click OK.
- Quit Script Editor.
Note: If no unused SMTP servers are found, a different message appears:
"All the SMTP servers you have defined are being used by active accounts."