System and method for pushing calendar event messages from a host system to a mobile data communication device

A method of redirecting a plurality of message types from a messaging server to a wireless mobile device, comprising the steps of:

• receiving an electronic message at a first message store coupled to the messaging server;
• determining whether the electronic message is an e-mail message or a meeting request message;
• if the electronic message is an e-mail message, then redirecting the e-mail message from the first message store to the wireless mobile device via a wireless gateway coupling the messaging server to a wireless data network;
• and
• if the electronic message is a meeting request message, then providing a file attachment including information contained within the meeting request message and generating an e-mail message at the messaging server, wherein the file attachment that includes the meeting request message information is attached to the e-mail message, and the e-mail message includes a content type indicator that indicates that the file attachment includes the meeting request message information, and transmitting the e-mail message with the file attachment from the messaging server to the wireless mobile device via the wireless gateway coupling the messaging server to the wireless data network.

A method of transmitting meeting request messages from a host system to a wireless mobile device, comprising the steps of:

• receiving a meeting request message at the host system;
• wherein the host system is a messaging server
• generating a file attachment at the host system, the file attachment including the meeting request message;
• generating an e-mail message at the host system, wherein the file attachment with the meeting request message is attached to the e-mail message, and wherein the e-mail message includes a content type indicator that indicates that the file attachment includes the meeting request message;
• transmitting the e-mail message from the host system to the wireless mobile device via a wireless gateway coupling the host system to a wireless data network;
• receiving the e-mail message at the wireless mobile device and detecting the content type indicator in the e-mail message;
• and
• in response to detecting that the content type indicator indicates that the file attachment to the e-mail message includes the meeting request message, executing a calendar application on the wireless mobile device and displaying the meeting request message.