my isp is cox.net. they are still my isp but they switched their mail service to yahoo mail service. my mail address was kept at cox.net not yahoo. Will not let me create a Thunderbird account. Says unable to log into server.
i figured it out . when it asks for email address instead of cox.net put yahoo.com then you set up a yahoo acct for thunderbirdA quick bit of duckduckgo-fu yielded this:
How to Set Up Cox Email on Microsoft Outlook
Step by step instructions to open setup your Cox account in the Outlook program, making it easier to check your mail.www.techsolutions.support.com
It relates to logging into a cox email in outlook, but the settings should be the same in Thunderbird.
There's no date on the article itself, but the date on the footer of the page is 2024. Hopefully that information is still up to date and relevant.
So perhaps take a look at the settings used for Outlook and apply them to Thunderbird.
Failing that, you will probably need to take this up with your ISP.
Thunderbird is available for Windows too, so there's no reason why one of their support reps couldn't help you to get you logged into your email in Thunderbird.