I used the Unsubscribe plugin for Mail.app, but it is now a part of TrustedID (http://www.unsubscribe.com/), so now I can't use it anymore and want to remove it.
When I want to uninstall the plugin from inside the Mail.app preferences, nothing happens when I hit the button
Remove Unsubscribe Plugin. There's nothing in /Users/MyUserName/Library/Mail/Bundles that looks like the Unsubscribe plugin.
How to uninstall deprecated Unsubscribe plugin from Mail.app?