What does this mean? The mail server responded: Too many messages. Please check the message and try again.
Not sure if this will get posted twice, if so appologies. I have used Thunderbird with my BT mail account for about 10 years. Just this week I've been getting this message:
The mail server responded: Too many messages. Please check the message and try again.
Sometimes the message is sent anyway, sometimes not. BT technical support are denying all responsibility and saying it is a Thunderbird fault, I am fairly sure it isn't but don't know how to fix it, any ideas anyone?
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First question with reply. https://support.mozilla.org/en-US/questions/1014641