Create a fully featured Support Center in your WordPress setup without any third party dependency, completely FREE. Get a built-in Knowledgebase too. The plugin is available on WordPress.org repository:
This plugin looks excellent and seems to cover most bases. I'm just curious if there are plans to have ticket creation by email? Ideally, you could also reply to tickets by email. I know this is probably a tough feature to do, but if you could, that would be amazing.
As user Brent asked for:
Suggested first by Mike Andreasen on Facebook PM.