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Thunderbird 78.0 beta 4 - Issues with AT&T Yahoo Mail

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  • 1 has this problem
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  • Last reply by wendellr

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It looks like ever since the 78.0 beta 4 upgrade, I CANNOT receive email from my email provider AT&T-Yahoo. I've tried many different configuration changes and nothing has provided a solution. For some reason Thunderbird cannot send the correct password to the servers, to send\receive email messages. Error Message: "Sending of password for user xxx@xxx.xxx did not succeed. Mail server x.x.x responded: Server error - Please try again later."

I have many email accounts configured in Thunderbird for my profile, but the AT&T-Yahoo accounts are the only ones affected. My Google and Hotmail still work just fine.

Has anyone else experienced this issue or can assist. Thank you in advance.

Chosen solution

I don't think this is an issue specific to the beta version, rather, one related to the authentication method. If you use the AT&T servers inbound.att.net and outbound.att.net, and the authentication method is 'normal password', you must use a 'secure mail key' in place of the account password. If you connect through the Yahoo servers, use the account password and OAuth2 authentication.

https://support.mozilla.org/en-US/questions/1288812

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Chosen Solution

I don't think this is an issue specific to the beta version, rather, one related to the authentication method. If you use the AT&T servers inbound.att.net and outbound.att.net, and the authentication method is 'normal password', you must use a 'secure mail key' in place of the account password. If you connect through the Yahoo servers, use the account password and OAuth2 authentication.

https://support.mozilla.org/en-US/questions/1288812

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sfhowes, Thank You Very Much for the response, it was spot on. I don't know when the email client parameters requirements(Thunderbird for example) changed, but for the AT&T\Yahoo servers the Secure Mail Key is required to be used as the password.

Regards, wendellr

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