dbinbox makes it easy to send files Pick a username, link dbinbox with your Dropbox account, and share your personal dbinbox link (dbinbox.com/your_username) with people that want to send you files. dbinbox is perfect for collecting wedding photos, getting files too big to be sent through email, or sending documents to yourself from a friend's computer. dbinbox is free for files up to 50 MB, and accounts can be optionally passphrase protected.