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AUTH error logging in

I've never had a problem before but suddenly I'm getting an error when I try to log into one of my accounts telling me "The STAT command did not succeed. Error getting message number and sizes. Mail server pop.gmail.com responded [AUTH] invalid credentials. Why is this happening now?

I have 4 other accounts on Thunderbird and this is the only one that has started giving me problems.

I've never had a problem before but suddenly I'm getting an error when I try to log into one of my accounts telling me "The STAT command did not succeed. Error getting message number and sizes. Mail server pop.gmail.com responded [AUTH] invalid credentials. Why is this happening now? I have 4 other accounts on Thunderbird and this is the only one that has started giving me problems.
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Todas as respostas (2)

This reply doesn't help me because I'm using POP and not IMAP. It has been working fine since I started using thunderbird over a year ago and all of a sudden it is a problem. Nothing changed, I don't know why it is suddenly an error with the AUTH credentials. I had a similar problem with another account some time ago but it stopped on it's own. Maybe this will eventually stop too. I don't know what caused it. Also, please keep in mind that not all of us are computer wizards, Some of us need a little plainer explanations. Not so much tech talk.

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