"Express file" - server of information exchange.

You can use anonymously the server saving the files. In this case the access to the objects will be possible only with a key which you will receive after creating the object.

Express letter
Even if recipient is not registered in the system, the letter will be.
SMS containing information about accessing the account will be sent to the specified phone number.
Express sign up to EXMAIL.
To create mailbox at ex.ua just enter yout phone number.