On May 2nd Chris Jones asked If they were common providers involved with unsubscription due to marking mail as spam.
The providers were:
Comcast, AOL, Yahoo, Windstream
All except Comcast have been guilty in the past of pushing emails into the spam folders. I understand why Comcast is now added to the list.
I think I read somewhere that many services subscribe to spam filters produced by someone. Obviously something changed in the last few days affecting AOL and Yahoo.?
