when I click on links to take me to website through my email in Thunderbird that I will get an error message that reads "we could not verify the certificate, reason=wronghost"

Do you get the error in Thunderbird or in the browser? What browser?

But, if I copy link and copy into browser it works fine.

Is that the same browser as the one which opens when you click the link in Thunderbird (a.k.a. your default browser)?

Use Duck Duck Go. Yes my default. Again it is when I click link in email that I get error. When I copy and paste it works fine.

You didn't answer the question whether the error is in the browser or in Thunderbird.

It goes to my browser and that is where error occurs. When I copy and paste link from email it seems to work ok.

I really don't know why you do get the certificate error in your browser when clicking a link in Thunderbird. I don't think it is a problem with Thunderbird though, because all it does is calling the default browser, and passing the URL to it. Given the fact that your browser produces the error, I'd rather expect the problem to be there.

Have you tried to use a different browser as default browser?