I continually experience errors sending mail from Thunderbird, using
Yahoo mail and the Yahoo and Webmail add-ons. This has been a
continual problem through multiple updates of both Thunderbird and the
extensions. Currently I am on Thunderbird 12.0, Webmail 1.4.7 and
Webmail - yahoo 1.5.7. Oftentimes, the only way I can send email at
all is to go to the browser and use the Yahoo interface. Do any other
extension users experience this? What is going on and what can I do?