I have lost my IMAP and SMTP connections between Thunderbird v91.9.0 on Windows 10 and two Gmail accounts. One is a standard @gmail.com account and the other is an @my_d… (funda kabanzi)
I have lost my IMAP and SMTP connections between Thunderbird v91.9.0 on Windows 10 and two Gmail accounts. One is a standard @gmail.com account and the other is an @my_domain account on Google Workspace. The experience is (almost) the same on both.
Any help would be greatly appreciated.
When I try to read IMAP mail through Thunderbird, I'm presented with a pop-up (apparently from Google) to log into the gmail account with the email address pre-populated in the "Enter your email" field. Curiously, the email address for the Google Workspace account is broken into two parts with the user name left justified in the field, the @my_domain right justified and a gap between them. This is not true for the standard @gmail.com account, where the field is prepopulated with a left justified username@gmail.com. I click the "Next" button and an "Enter your password pop-up (apparently from Google) appears, into which I enter the password and click "Next".
Then I see a pop-up (apparently from Google) which says "Mozilla Thunderbird Email wants to access your Google Account", with "Allow" and "Cancel" buttons. I click "Allow" and often (but not always) see a small pop-up (apparently from Thunderbird) which says "Authentication failure while connecting to server imap.gmail.com".
The experience on the sending side through SMTP is similar. Upon clicking "Send" in Thunderbird, I'm presented with the same sequence of pop-ups (apparently from Google) to enter Google user name, password and permission to allow Thunderbird to access my email. Then there is a "sending message" pop-up (apparently from Thunderbird) which never completes.
Here are what I think are the relevant Thunderbird settings --
Thunderbird settings for user@my_domain.com
IMAP server: imap.gmail.com
IMAP port: 993
User name: user@my_domain.com
Connection security: SSL/TLS
Authentication method: OAuth2
SMTP server: smtp.gmail.com
SMTP port: 465
Connection security: SSL/TLS
Authentication method: OAuth2
User name: user@my_domain.com
Thunderbird settings for user@gmail.com
IMAP server: imap.gmail.com
IMAP port: 993
User name: user@gmail.com
Connection security: SSL/TLS
Authentication method: OAuth2
SMTP server: smtp.gmail.com
SMTP port: 465
Connection security: SSL/TLS
Authentication method: OAuth2
User name: user@gmail.com
Thunderbird Preferences
Accept cookies from sites: Checked
Accept third-party cookies: Always
Exceptions: https:accounts.google.com -- Allow
Here are what I think is the relevant Gmail setting --
IMAP is enabled