Using a password is just as secure as OAuth2, except for the possibility for somebody who can access your PC to use Tools -> Options -> Security -> Passwords -> Saved Passwords to view your saved password. Mail server responded: Web login required: '. Currently it should look something like: 'Sending of password for user XYZ did not succeed. They have changed the error message several times. However, unless you log into using a browser and select Allow to let less secure apps access your Google account Gmail may return an error when you try to login if you haven't had the Gmail account for at least 90 days. You can use a normal password instead for 'secure authentication'.

OAuth2 creates a token that will be used as if it was a stored password, by the password wizard. Cookies are normally enabled by default (Tools -> Privacy -> Accept cookies from web site is checked, and 'Keep until' is set to 'until they expire'). Using OAuth2 for 'secure authentication' will popup a window for your password using your systems default browser. You can do that by replacing with as the username in Tools -> Account Settings -> Server Settings. If you're using the same Gmail POP account with multiple email clients you need to enable recent mode in order to let each email client access all of the messages in that account.

If you're using an IMAP account, click on 'Settings -> Forwarding and POP/IMAP ->Enable IMAP'.

If you're using a POP account, click on 'Settings -> Forwarding and POP/IMAP -> POP Download:' and choose either 'Enable POP for all mail (even mail that's already been downloaded)' or 'Enable POP only for mail that arrives from now on'.

Logging into your Gmail webmail account using a browser.

If you don't want it to automatically configure your account press the 'Manual Config' button in the second screen of 'Mail Account Setup'.Īfter you create the POP/IMAP account in Thunderbird enable using the POP or IMAP server with your account by: It defaults to a IMAP account but you can tell it to use a POP account instead using a radio button. All you need to know is your email address and password, it will configure the account settings for you. You can create a new account by pressing the Add Mail Account button in Tools -> Account Settings -> Account Actions. To add an account in Thunderbird you need to have a Gmail webmail account, create either a POP or IMAP account in Thunderbird and then enable it in Gmail settings using a browser. Gmail provides free webmail accounts and POP, IMAP and SMTP servers. This article was written for Thunderbird but also applies to Mozilla Suite / SeaMonkey (though some menu sequences may differ).

Mozilla gmail