Hi, My old Gmail account works in Thunderbird 68.12.1 (32-bit) with no problems, that is, it sends and receives mail. Now I decided to add another Gmail account to Thunde… (read more)
My old Gmail account works in Thunderbird 68.12.1 (32-bit) with no problems, that is, it sends and receives mail. Now I decided to add another Gmail account to Thunderbird. It receives mail without problems, but it can't send mail. If that matters, I have total 4 accounts in Thunderbird (the other 2 aren't Gmail accounts and they're working).
Both accounts have identical settings:
1) both are Gmail mails, that is, mail address is like firstname.lastname@example.org and those mails aren't new (I've had them for several years, but in Thunderderbird was using just one of them).
2) the option for "Less secure app access allowed" is turned ON in Gmail account security
3) POP mail server settings: Server Name: pop.gmail.com Port: 995 Connection security: SSL/TLS Authentication method: Normal password
4) SMTP server settings in Thunderbird: Server Name: smtp.gmail.com Port: 465 Connection security: SSL/TLS Authentication method: OAuth2
So why my new account can't send mails with Authentication method: OAuth2 (it can only send mails using Authentication method: Normal password).
Isn't that the opposite of what should be happening? I thought that Gmail was supposed require OAuth2 method. Anyway, what I'm missing to make those accounts identical for Gmail?