Out of the blue, my inbox emptied and the messages were nowhere to be found. My email provider took a few days but recovered them from the servers, but shortly after it happened again. Their tech team said it was an erroneous message from Thunderbird (one of several apps that caused this, they said, not targetting Mozilla specifically). They suggested I switch to Outlook, which I have done but I miss Thunderbird, it's so much better. Any way I can return but guard against these raids? If you are kind enough to advise me, please be aware I am very non tech.....