Dropbox had yahoo mail integration 2 years ago: https://blogs.dropbox.com/dropbox/2013/04/yahoo-mail-dropbox/ https://blogs.dropbox.com/dropbox/2013/04/yahoo-ma

Dropbox had yahoo mail integration 2 years ago: https://blogs.dropbox.com/dropbox/2013/04/yahoo-mail-dropbox/ https://blogs.dropbox.com/dropbox/2013/04/yahoo-mail-dropbox...