Firewall requirements for BlackBerry Enterprise Server (BES) connection to the BlackBerry Infrastruc
To establish a connection with the BlackBerry Infrastructure when MDaemon is behind a firewall, you will need to verify that port 3101 is open for outbound initiated, bi-directional, and Transmission Control Protocol (TCP) traffic.
In order to use the BES feature in MDaemon versions 12.0 through 17.0, you will need to ensure you have port 3101 open for outbound traffic on your firewall.
This feature is only available in MDaemon Pro.
For more information on how to configure your firewall to communicate with the BlackBerry Infrastructure for BlackBerry Enterprise traffic, you can view the KB article on the BlackBerry knowledge base here: http://support.blackberry.com/kb/articleDetail?ArticleNumber=000003735
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