Suddenly Email stops sending and receiving Mo known reason

Suddenly Email stops sending and receiving Mo known reason

3 days ago my zomail suddenly stops working online. Cant send, it times out, can t receive either. Check my settings. I have made NO changes, I set it and leave it, why should it change? My zoho account works ok, this is my other pop account. However it all works fine on my local thunderbird client.

I send a feedback form but I've had no reply. So my somail is now dead and I cant see any reason why. Please advise.