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:

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Just last week SP6 MR6 for Exchange was released and the same for SP6 MR5 for GroupWise ... I don't know what game RIM is playing, but Domino is certainly getting some love.

Download Domino BES 4.1 SP6 MR7

The complete release notes are attached or can be downloaded from RIM.

This release is version number is 4.1.6 MR7 (Rollup) (Bundle 171).

Issues fixed in this release:

Activation
SDR 270541
In BlackBerry Enterprise Server...

From the attached document:

"Recently, Etisalat, a carrier in the United Arab Emirates (UAE), sent an SMS message to a number of their customers informing them of a software patch that was available for BlackBerry smartphones and indicating that the software patch would enhance the performance of the BlackBerry service if it was downloaded and installed on the smartphone. Etisalat included a web link in the SMS message urging these customers to download and install the software....

Download BES for GroupWise 4.1 SP6 MR5

The complete release notes are attached or can be downloaded from RIM.

This release is version number is 4.1.6 MR5 (Rollup) (Bundle 169).

READ ME: If you upgrade to BlackBerry Enterprise Server version 4.1 SP6 MR5 directly from a version of BlackBerry Enterprise Server that is earlier than version 4.1 SP6, you must complete the following upgrade path:
1.Upgrade to BlackBerry Enterprise Server 4.1 SP6. After the setup...

This was announced last week but I never got to actually give a look at it.

Download BES 4.1 SP6 MR6

The complete release notes are attached or can be downloaded from RIM.

This release is version number is 4.1.6 MR6 (Rollup) (Bundle 170).

Issues fixed in this release:

BlackBerry Attachment Service
SDR 324730
In earlier versions of the BlackBerry Enterprise Server, security vulnerabilities existed in the PDF distiller of...