So...there is no answer for this ongoing issue?

Ok...now it's been three days without the ability to send from my primary email account. Is there no help to be found here?

https://support.mozilla.org/en-US/kb/cannot-send-messages

Airmail, Thanks for your response. I was too tired to address this last night when I saw it. I'll get on it today and report back on my progress.

Thanks again.

Well I've gone over the trouble shooting link except for the last item...sending a message to Thunderbird support.

I did change my user name for the actual email address that's giving me trouble. I now get a different message with a pop up window asking me to choose a new password....which I did...made no difference. I then used 'keychain' to find passwords and tried typing that password in...made no difference. I was unable to find my 'trusted programs' list???

In order for us to better investigate this issue you need to add a little more non-personal information.

Please add the troubleshooting information to your post To find the Troubleshooting information:

• Open Help (or click on three-line-icon and select Help)
• Choose Troubleshooting Information
• Use the button Copy to clipboard to select all. Do not check box "Include account names"!
• Paste this in your post.

Please also add the result of these troubleshooting steps to your post

• Does Thunderbird work in TB Safe mode (see Thunderbird Safe Mode)?
• Do you use anti-virus and firewall software? What is the version?