| 摘要 |
A communications system includes a network engine that communicates with a plurality of a user subscribed mobile wireless communications devices via a communications network for sending and receiving emails. A direct access server is connected to the network engine for polling electronic mailboxes of users from an email source and retrieving electronic messages from the electronic mailboxes and pushing any electronic mailboxes to the network engine to selected users subscribed mobile wireless communications devices. The direct access server communicates with an email source using the internet message access protocol (IMAP) and IMAP-Idle supportable connections in a communications channel to accept real-time notifications. The direct access server verifies an Idle command functionality on the communications channel before relying on the communications channel for new mail notifications.
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