If you see the SpamSieve commands in Mail’s Message menu, that means its plug-in has loaded. In rare cases, SpamSieve may think that the plug-in has not loaded, and ask you to enable it, even though it was actually working properly. For example, this can happen if SpamSieve lacks access to communicate with the plug-in or if Mail takes a very long time to launch.
First, make sure that SpamSieve has Full Disk Access.
If that doesn’t fix the problem, please:
- Click this link to enable some additional debug logging.
- If Mail takes a long time to launch, please use Activity Monitor to record a few samples of it while it’s launching. There are also some tips for how to speed up Mail if it is launching slowly.
- The next time SpamSieve incorrectly reports that the plug-in has not loaded, please save a diagnostic report and send it in (along with the sample logs) so that we can investigate what is going wrong on your Mac.