How about a single use URL?

[slmcmahon]

It would seem useful to me to have a single-use URL that I could give to a user. Maybe something like http://dbinbox.com/username/somerandomtoken that would expire immediately after its first use.

[boschkundendienst]

cool idea, would love that also. If you host dbinbox yourself, this might be easy using a reverse proxy but a general implementation into dbinbox would have some benefits

[christiangenco]

I like this idea. Would also be nice to be able to set a size or file type limitation. Hmmm...