![Thunderbird for Mac Can't Access E-Mail - unable to login to server | Thunderbird Support Forum | Mozilla Support Thunderbird for Mac Can't Access E-Mail - unable to login to server | Thunderbird Support Forum | Mozilla Support](https://assets-prod.sumo.prod.webservices.mozgcp.net/media/uploads/images/2020-01-11-22-55-32-298273.png)
Thunderbird for Mac Can't Access E-Mail - unable to login to server | Thunderbird Support Forum | Mozilla Support
![Authentication failure while connecting to server imap.gmail.com using Thunderbird - Gmail Community Authentication failure while connecting to server imap.gmail.com using Thunderbird - Gmail Community](https://storage.googleapis.com/support-forums-api/attachment/thread-18146441-2983381281504096225.png)
Authentication failure while connecting to server imap.gmail.com using Thunderbird - Gmail Community
Still am having the "Unable to Login at server. Probably wrong configuration, username or password" - Gmail Community
Still am having the "Unable to Login at server. Probably wrong configuration, username or password" - Gmail Community
![Mozilla Thunderbird - How to Fix Login to Server with Username Failed - Login Account Failed - YouTube Mozilla Thunderbird - How to Fix Login to Server with Username Failed - Login Account Failed - YouTube](https://i.ytimg.com/vi/4qgNZk9o93A/maxresdefault.jpg)