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Thunderbird cannot login to Mac email since OS X Sierra update. SOLVED use 2-step authentication
Since I updated to Mac OS X Sierra, my Thunderbird client keeps asking for my Mac email password and fails to logon. I then receive a message saying that the Mac mail server has disconnected. My Mac password hasn't been changed recently and other email accounts, gmail & hotmail are working fine. This issue is happening on both my MacBook Pro's, I know I am entering the correct password as I logon to iCloud without any trouble, the email account settings in Thunderbird appear to be correct, the server settings are the same as if I try to set up a new Mac mail account in Thunderbird.
Modified by Wayne Mery
You'll need to create an application specific password for Thunderbird, as it doesn't support 2-step authentication natively.Read this answer in context 👍 5
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Are you using 2-step authentication?
Yes, I am, I am not being asked to authorise on another device for email though, the native Mac mail client is working fine.
You'll need to create an application specific password for Thunderbird, as it doesn't support 2-step authentication natively.
Thanks Christ1, sorted now.