No, sorry, suggesting Thunderbird is not helpful at all. I am working my way through the various email clients to find one that I like that is also fast enough. Thunderbird seems to be for folks who have loads of time to waste waiting for it to decide whether it will send one's emails or not. BT Webmaill has many faults but it works and is relatively quick and I can pick it up anywhere. Pete.
I only mentioned Thunderbird as an example, though I would recommend it based on many years experience; I don't recognise the issue you describe. I recently had to use webmail for a couple of days while BT were looking at a problem with my service; it was awful. Each their own I guess.
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