"8. I closed out of the 2 new windows and went back to the Internet Explorer's Internet Options.
9. Under the program tab I clicked "Manage add-ons"
10. I clicked "Accelerators" on the left.
11. I clicked "Email with Windows Live", then I clicked Disable on the bottom."
Two years later and you just helped me out!
My problem was I installed Thunderbird last week (while keeping the Outlook client) but did not like it, so I uninstalled it and that's when the issues started. Two separate QB programs had the same issue where I was getting the unable to send email problem. I had already ran through all of the QB File Doctor steps, the default program steps, and temporarily disabling the firewall.
Thanks, Goodgold!
