CAS ARRAY Names, Certificates and Load balancers

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This post was originally published on http://itproafrica.com CAS Array’s may be a bit confusing What are they What do you call them? Do CAS Array names need to be included in your certificate names What about load balancers   What are they? A CAS array is a logical Grouping of CAS servers within an AD […]

Exchange 2007 SP1 offline help

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Exchange 2007 help is now available for offline browsing allowing you to read and search help and shell based help. Microsoft Exchange Server 2007 Service Pack 1 Help Microsoft Exchange Server 2007 Service Pack 1 Shell Help Offline help files are severely useful under many circumstances including server sizing and shell syntax lookups, especially when […]

Exchange 2007 – Internet Mail to New Distribution Groups fail to deliver.

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After creating a new distribution group in Exchange  and trying to email it from the outside you receive the following error: Delivery has failed to these recipients or distribution lists:group@yourorg.comYour message wasn’t delivered because of security policies. MicrosoftExchange will not try to redeliver this message for you. Pleaseprovide the following diagnostic text to your system […]

OCS/Communicator – Cannot Synchronize Address Book

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When I opened Communicator I received a "Cannot Synchronize Address Book" message with additional detail of "Cannot synchronize with the corporate address book. The cause of the problem is unknown. Please contact your system administrator with this information." I had this issue occur internally, i.e. on a local LAN/WAN and not from the Internet, and […]