For at least a month my inbound email traffic has almost disappeared. Trash mailbox only includes deleted messages. Junk mailbox is empty. When I log into my email account on my iPhone, the junk file is full of messages I did not read or see in the In Box but at least they are there. I have selected ones I want to see and read and forwarded them to my Inbox at my regular email address. The first time I did that, the messages were posted to my In Box on Tbird. The second time, most were lost. Today, not a single message was sent to my Inbox on Tbird.

I have no known filters on my email account with Gmail, and I have tried to remove any filtering in Tbird (when I reviewed the filter dialogue box it did show to delete junk mail, and I unchecked the option.) The fact that Google is selecting which messages go to my inbox on my iPhone, maybe the problem is at Google. But I am at my wits end and Tbird, which I have used for years, never had any of these problems and the support questions and answers do not pertain to what to do in this case.