How to disable ActiveSync for whole OU in Exchange 2010

Get-Mailbox -OrganizationalUnit GR | Set-CASMailbox -ActiveSyncEnabled $false

RDCMan

nice tool for Windows servers support: http://www.microsoft.com/downloads/details.aspx?displaylang=en&FamilyID=4603c621-6de7-4ccb-9f51-d53dc7e48047

Exchange 2010 OWA calendars

For those who use OWA calendars on MOSS 2007 intranet: this feature is depreciated in Exchange 2010, you must use web services instead of URL. There is a Virto webpart for Sharepoint 2007 that can help. I think MOSS 2010 should also support web services of Exchange.

Free SSL certificates

You can get free 1 year SSL certificates from https://www.startssl.com/