Thunderbird/Support

Thunderbird is from Mozilla which is an open organization. This means that transparency and openness are valued and therefore there is no paid support or support over the phone or via email. While we will do our best to help you with your problem, please remember that Thunderbird is an open source project. This means that - in addition to being able to provide Thunderbird free of charge - many of our activities (particularly support, documentation and customization) are mostly volunteer efforts. Given that we don't have the resources of a commercial software company, we rely on our users and our community to help each other via open channels e.g. http://getsatisfaction.com/mozilla_messaging and this wiki.
For newcomers, we recommend checking out Thunderbird support on Get Satisfaction. In addition, there are many other community support channels for Thunderbird most notably the ones at MozillaZine including their forums and knowledge base. You can find even more support resources via a Google search or via Get Satisfaction.
Get Satisfaction - Notes and processes for Thunderbird Community Support using Get Satisfaction