Hello ChrisJScott,

All available settings for users on a shared server are within the Configuration screen of the Spam Assassin tool. Since that area does not have a setting to enable or disable the ***SPAM*** prefix to the email subjects, it is not possible to turn it off.

This is because any change to the configuration on that level would affect all users on the server. It can be done by customizing Spam Assassin on a VPS or Dedicated server, however, just not our shared servers.

Best Regards,
Scott M