Hey @bryanttheinformer, sounds like you're close, but Thunderbird is having trouble authenticating your Verizon.net email on your new Windows 11 setup. This is common because Verizon email is now handled through AOL/Yahoo, and they require either OAuth2 or an app password.

Let's try this:

• Open Thunderbird
• Go to Menu > Account Settings
• Under your Verizon account, go to Server Settings
• Set Authentication Method to OAuth2
• Scroll down to Outgoing Server (SMTP), select the Verizon SMTP server, click Edit
• Set Authentication Method there to OAuth2 as well
• Restart Thunderbird
• You should get a Yahoo/AOL login window
• Sign in with your full Verizon email address and approve Thunderbird access

If that works, you're done.

You can't use OAuth2 with verizon.net servers. Use these settings:

imap.aol.com, 993, SSL/TLS, OAuth2, yourname@verizon.net

smtp.aol.com, 465, SSL/TLS, OAuth2, yourname@verizon.net

https://support.mozilla.org/en-US/questions/1525968

Friends, thanks for your suggestions. I'm sure I didn't provide enough information to clarify this issue. Thunderbird does not present me with an OAuth2 authentication method. My incoming server is named pop.verizon.net. As such, I am only offered two protocols: IMAP and POP3. Thunderbird on my old PC (which works just fine) uses the POP3 protocol, with Connection Security SSL/TLS.

I have tried combinations of the few items I'm offered in the drop-downs when I'm setting up the Incoming and Outgoing servers. When I click the "Re-test" button to try a connection, I get this: "Thunderbird failed to find the settings for your email account".

Do you have any suggestions to go forward?

Thanks

Sfhowe's suggestion works, as does Thundamikes. I went through this last week. You may be having trouble with the setup wizard. go to settings>general and untick the experimental setting. I opened a bug on this to encourage that the Verizon setup be stabilized in the wizard. That is at https://bugzilla.mozilla.org/show_bug.cgi?id=1978413