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Can't Log In to ATT

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I've used Thunderbird successfully for years but today I can't log in to my ATT account to retrieve or send e-mail. Every time I try, there's a long pause and then a message that there's something wrong with my account info... though nothing has changed in that regard. I tried resetting my password at ATT and that worked fine for their webmail app, but Thunderbird still can't log in. I did a clean install of Thunderbird on my Win 7 Pro system and got the same result. Current Thunderbird version is 52.9.1 (32-bit).

I've used Thunderbird successfully for years but today I can't log in to my ATT account to retrieve or send e-mail. Every time I try, there's a long pause and then a message that there's something wrong with my account info... though nothing has changed in that regard. I tried resetting my password at ATT and that worked fine for their webmail app, but Thunderbird still can't log in. I did a clean install of Thunderbird on my Win 7 Pro system and got the same result. Current Thunderbird version is 52.9.1 (32-bit).

Réiteach roghnaithe

Hi WebDev, If you open the password manager, is your new password listed? To access the password manager, visit the article Password Manager - Remember, delete and change passwords in Thunderbird

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Getting a different password for the e-mail client as recommended above solved the problem for exactly one use. Next AM, back to being denied access on Tbird though I can use the webmail interface. What now?

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Contact your email provider for help using a 3rd party email client. They dreamed up this Secure Key thing. Let them explain it.

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Réiteach Roghnaithe

Hi WebDev, If you open the password manager, is your new password listed? To access the password manager, visit the article Password Manager - Remember, delete and change passwords in Thunderbird

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I got some help from the ATT forum. The winning combo seemed to be in line with the post above this one. Thanks!

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TBird worked fine yesterday but this AM I'm SOL: can't log on and get e-mail with TBird but Yahoo web interface works fine. I verified that the new pass code is correctly entered for incoming and outgoing server settings in TBird. Now WTF?