1. An electronic mail (email) communications system comprising: at least one mobile wireless communications device; a wireless communications network connected to the Internet; an Internet Service Provider (ISP) server connected to the Internet for receiving emails for a given user; an email proxy server connected to the Internet for pushing emails from said ISP server to said mobile wireless communications device via said wireless communications network; and a user computer connected to the Internet and comprising a client email application for periodically polling said ISP server to detect new emails, and sending new email notifications to said email proxy server upon detection of new emails to cause said email proxy server to push the new emails to said at least one mobile wireless communications device.