SpamSieve is not learning. Every day I get the same spam mails. I train SpamSieve to recognize this spam every day, but again and again the same mails will arrive my mail folder and will not sort out. SpamSieve is not learning.
What can I do to get SpamSive to learn again?
I am using SpamSieve 2.9.39 with Mail 12.4 on macOS 10.14.6.