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Mobile Messaging Gateways: Page 5 of 16

• Single-mailbox integration. If a user deletes an e-mail message or makes an appointment, the change propagates back to your e-mail server.

• Client platform support. Possibilities include the RIM BlackBerry, Palm OS smartphones, Windows Mobile Pocket PCs and smartphones, Symbian OS smartphones, Java- and BREW-capable devices, and devices with WAP (Wireless Application Protocol) microbrowsers.

• Support for multiple types of e-mail. The most flexible gateways can access e-mail from a variety of systems, including Microsoft Exchange, Lotus Domino, Novell GroupWise and Internet POP3/IMAP servers.

• End-to-end security. The gateway communicates with the mobile client over secure encrypted tunnels. Many store data on the device in encrypted form.

• PIM synchronization. Most gateways let users synchronize personal information management data, such as contacts and appointments.