mozilla thunderbird login failed on yahoo mail

If you are still confuse or unable to decide to whom to contact with the issues you are facing with please feel free to contact us. Hope you all got a clear understanding about everything regarding this topic.

** If you’re using the att.net servers, and you can get OAuth2 authentication to work with the att.net servers, just input the regular account password in the OAuth browser window, and then a long OAuth token will be saved in the Thunderbird password manager.

Though Thunderbird supports OAuth2 for Yahoo email accounts on, , and, we can’t ascertain that it would work with the att.net servers (though it’s worth trying. ** Please note that you must enable cookies in Thunderbird Options/Privacy for OAuth2. You may have to log into Yahoo via a web-like interface that may appear and that solves the problem. Step 2: Finally, change the “Authentication” to OAuth2. To do this, click the email account, choose “Settings.” Select “ View setting” for this account, click on “Server Settings.” Step 1: Change the Authentication to “OAuth” and it will allow you to enter the password. If all the settings are correct and you still facing the issue with “login to server failed” then try the below mentioned process to solve the issue. Outgoing SMTP server hostname “” or .” Mozilla Thunderbird Login to Server Failed You have to double check your settings to ensure a success login. Login failure usually occurs when wrong settings took place.

If the same comes in your case follow the step to solve the issue. However in some cases there is a chance that you may face “Thunderbird login to server failed” error. Port numbers: 587/465 Encryption: TLS/SSLĪfter you have entered all the configurations as shown above, click on “Create Account.”īy using above mentioned setting, you got a success login via Thunderbird to Yahoo Mail account.

Check if the outgoing mail server configuration is rightly inputted as follows:.

If you choose the POP3 account configuration, enter the following details: Incoming mail server: Port numbers: 995 Encryption: SSL.

Mozilla thunderbird login failed on yahoo mail