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Mozilla Thunderbird no longer working with Yahoo email

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midtax
midtax
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My Mozilla Thunderbird e-mail stopped working last week. From what I can gather Yahoo added some sort of protection. In speaking with AT & T today (who administers Yahoo e-mail) they are saying that my Thunderbird e-mail to be set for "Open Authentication" Does anyone know how to do that?

My Mozilla Thunderbird e-mail stopped working last week. From what I can gather Yahoo added some sort of protection. In speaking with AT & T today (who administers Yahoo e-mail) they are saying that my Thunderbird e-mail to be set for "Open Authentication" Does anyone know how to do that?

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sfhowes
sfhowes
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Open Authentication, or OAuth2, is the preferred method of authentication if your account connects to the Yahoo servers such as imap.mail.yahoo.com and smtp.mail.yahoo.com. But if the account connects through the AT&T servers such as inbound.att.net or imap.mail.att.net and outbound.att.net, the authentication should be 'normal password' and a secure mail key, created on the AT&T site, should be used in TB instead of the account password.

https://www.att.com/support/article/dsl-high-speed/KM1010523/

Open Tools/Account Settings and see which servers are entered and the authentication method.