Ok, the so called spam filtering from Plusnet has always been dreadful. For example I have NEVER EVER had a genuine email from any of my Chinese friends that wasn't classed as spam, even almost blank test messages!
But now it is reporting virtually all of my email as spam, so I have had to turn it off altogether!
It's hard to believe that a company with the resources of Plusnet can't do basic spam filtering as well as the tiny ISP that was doing it for me before about 100 times better!
This is on top of email being broken almost continuously since July.
Yes, I have given my notice of cancellation and will soon be escaping from this hell!