Connection failure: unknown username or bad password

I use Thunderbird without problem for businesses for nearly eight years. I currently run at the top of a tower with Windows 7 Pro. There is only a single account/e-mail address on Thunderbird.

This morning when I went to check my e-mail I have my password is requested, then received the error 'sending of password did not. Mail server exchange.company.com replied: connection failure: unknown username or bad password. "I retried the password, restart Thunderbird and tried again, but still not received the same error. I sent an email from Thunderbird test which was very good. I am also able to connect to the server via web browser and I am able to send and receive emails on my mobile device.

I erased all the saved passwords of Thunderbird and I checked account settings, but I am still unable to download any email Thunderbird.

Apart from the deletion of the account, I don't really know what to do here. Any help would be appreciated! Thank you.

The problem has been resolved. Apparently the POP stack had to be reset by the side of the Exchange.

I hope this helps someone in the future...

Tags: Thunderbird

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