We use Thunderbird email. It has integrated seamlessly with QB since 2017 (we are using desktop 2018 Premier). We are replacing an old computer with a new one (Windows 10 Pro on both). On the new computer Thunderbird is not an option for "Send Email Using". Thunderbird is the default email application. I uninstalled msmail from the system, tried reinstalling QB several times and also ran the QB refresh program but I can can not Thunderbird to show up as an option. Using webmail is not an option for us. It has to use the Thunderbird application.
Re: Thunderbird email an option on all PCs except one
Thanks for getting back to us and providing an update, @A User.
Setting Thunderbird as the default email application usually fixes the issue of QuickBooks not being able to detect it as an option to send transactions and reports. Since you continue to get the same result even after performing those troubleshooting solutions you've mentioned, I recommend reaching out to an IT professional.
Your email provider supports Simple MAPI, which is utilized by third-party applications to send messages using the default email client. An expert can help configure or repair it in the Windows system directory to fix the problem.
I want to know how this goes and if you need further assistance. It's always my pleasure to help. Take care!