Does anyone know of a plug-in or add-on module that allows Mantis to handle inbound email and replies to case emails?  I haven't seen this mentioned in the documentation or roadmap, so I assume there's no plan to internalize this function in the near future.
If there's nothing out there I'm considering building something that will consume a POP3 account and inject the contents of emails into Mantis based on certain tags (case number, project name, etc.).  Am I reinventing the wheel here?