For those BES / Mail administrators that don't have access to their mail server wide open to the Internet here's RIM matrix of IP's you need to allow for proper BIS functionality:

<table class="MsoNormalTable" style="width: 95.08%; border-collapse: collapse;" border="0" cellpadding="0" cellspacing="0" width="95%"><tbody><tr><td rowspan="2" style="border: 1pt solid black; padding: 0in; background:...