I purchased a thing from a vendor and created an account on the site, years ago. I began receiving ads and newsletters that I didn’t want and tried to unsubscribe but it never worked. I finally gave up and trained the messages as spam with SpamSieve. It worked fine for a long time and I saw the messages in the junk mailbox every day. Today, I found the usual newsletter full of ads in my inbox and checked SpamSieve’s log. It shows a bunch of messages from this vendor that were “Predicted Spam” with values that vary from 73 to 96, and the last one, today, has two entries at the exact same time. One is "Predicted: Good (27), the other is “Trained: Good (Auto)”.
I haven’t done anything more with it, no training or trashing the messages.
Why is this? And what should I do to get rid of it?