I recently migrated from Microsoft Small Business Server 2003 to Windows Server Standard 2003 using the Microsoft Transition Pack (thanks to those who posted their previous issues with that system, I found many answers here regarding the problems I was encountering).
I have moved the Exchange Server off of the domain controller, and e-mail delivery within the organization as well as to my blackberry's is working fine.
I have searched a number of topics on here regarding CDO.dll issues. The version of CDO.dll matches on both the Blackberry Professional Software host machine as well as the Exchange server. The files have been registered on both machines as well and are residing in the system32 directories as I'd researched on other posts. Exchange System Manager is installed on the Blackberry Professional Software machine as well. This is hosted on the old SBS 2003 machine which still acts as the Domain Controller.
Send as permissions appear to be set properly also in active directory when I check the security tab on my users.
I, however, am still unable to create calendar invites and set attendees from my devices and receive Unlisted Message Errors back to my device when the invites are sent. Also, meeting requests are not forwarding to the Blackberry devices for acceptance.
Any input is greatly appreciated.