Thunderbird SMTP failure

I recently added a new email account to my Thunderbird client, and it failed in sending email (SMTP), though it did receive (pop3). I double and triple checked my configuration; I deleted and recreated the account; nothing seemed to work. I had two other SMTP accounts defined, and they never had the problem.

Finally I found a reference (sorry I don't remember what website) that suggested trying to delete all my saved passwords. Sure enough, that did it. Even though when I had recreated the account I was challenged for password input on the first time, it had still failed. Also, I had copied and pasted the password from an alternate source, so I didn't make a typo. Some how the storage for passwords, just for the single account, was corrupt.

If you use Thunderbird on Windows, to delete your passwords go to:

• Tools >> Options
• Click Privacy
• Click the Password tab
• Click Edit Saved Password
• Either click Remove All OR select the ones you want to delete and click Remove
• Click Close and click OK

That seemed to work for me.