I had a similar issue at some point, where for a month or two, quite obvious "not spam" emails were getting caught in the filter. Nobody else on the internet se

I had a similar issue at some point, where for a month or two, quite obvious "not spam" emails were getting caught in the filter. Nobody else on the internet seemed to be having the issue, and then it suddenly one day stopped happening again. I rarely mark emails as spam/not spam, so I don't think it was anything I did.