On Wed, 10 Feb 2021 10:36:59 -0800, OhldBoy wrote:

Win XP Pro SP3

Thunderbird 52.9.1

eMail access

I have several eamil accounts: hotmail, outlook and damned gmail.

I open Thunderbird and immediately get a request from gmail to allow
access by Thunderbird for one of the gmail accounts.
I enter the password and thunderbird now has access. Great ! But why !

Next I proceed to another gmail account in TB and am denied access.
This time tb is asking for the password. I enter it and check the box
to remember it and it fails.
I repeat and it fails.

So I proceed to another gmail account and same thing happens.

I have a password bank so I know the password is correct !

All other brand accounts have no problems and are accessible.

These were all working a few months ago !
I had no need to use this PC recently but now I do.

Also, gmail, for another account says it was suspicious attempt,
whatever that means and wanted to verify using a phone number to send a
text to.
unfortunately, my cell phone is not with me. so I am locked out of that
account because of gmail !!!

Pertinent Suggestions please.


"I can't sign in to my email client"
https://support.google.com/mail/answer/7126229#cantsignin


If you are not using Authentication Method = OAuth2 with Gmail, then you
may be running into Gmail turning off "less secure app access".
https://support.google.com/accounts/answer/6010255


1. The best fix would be to change the Authentication Method to Oauth2.
Gmail considers OAuth2 authentication to be "more secure access".

Thunderbird version 38 and higher support OAuth2 with Gmail.
OAuth2 is available if the server type is IMAP but not POP3.

2. Alternatively: Check if Google has turned off "Less secure app access"
in Google's account settings, for each one of the accounts which are
denied access.
https://myaccount.google.com/lesssecureapps

3. Even when "Less secure app access" is turned on, you may also need
to visit https://www.google.com/accounts/DisplayUnlockCaptcha
and follow the steps on that page -- for each one of the accounts
which are denied access.


FYI Gmail does not want you to use your main Google account password in
your email program. Google considers this to be "less secure" than using
OAuth2 or an app password.


--
Kind regards
Ralph