Someone in narisa.com have talk about trend to get file from mailbox. I found application name Peer to Mail
Peer2Mail is the first software that let you store and share files on any web-mail
account. If you have a web mail account with large storage space,
you can use P2M to store files on it. Web-mail providers such as Gmail
(Google Mail), Walla!, Yahoo and more, provide storage space that ranges
from 100MB to 3GB.