[epo]

If the gmvault on-disc format is well defined why not produce a tool to convert that to maildir or whatever? Gmvault does one thing well (allegedly, I've not used it), "export to some other format" just seems like feature creep especially when conversion can be done offline.

[zoobert]

Gmvault stores email content in individual files as text files (EML file) so it should be pretty easy to add some export functionalities (it might be a second tool). I will add that in the road map for v2.0.