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Just can't get enough of IT

This blog is about mostly anything in IT. But the primary focuses are Microsoft Technologies like Exchange, Office 365, Azure and Cloud Security.

Exchange Server Schema Information

Exchange Server extends the Active Directory schema during the PrepareSchema step during setup. The steps PrepareAD, PrepareDomain, or PrepareAlLDomains create Active Directory containers and objects that are crucially important for a stable operation of Exchange Server.

There are different Active Directory objects that are used to determine, if Active Directory has a proper Exchange Server configuration up and running.

Forest level

At Active Directory forest level the following attributes are used to determine the Exchange Server release:

  • rangeUpper attribute of the ms-Exch-Schema-Version-Pt schema object 
  • msExchProductId attribute of the Exchange organization object in the configuration partition
  • objectVersion attribute of the Exchange organization object in the configuration partition
  • objectVersion of the Microsoft Exchange System Objects (MESO) container 

Domain level

At Active Directory domain level the following attribute is used to determine the Exchange Server release:

  • objectVersion of the Microsoft Exchange System Objects (MESO) container 

 

I have written a PowerShell script to fetch all required information for all domains in an Active Directory forest. The script simplifies the process of gathering the data.
Read more about the script here.

 

Schema versions

Exchange

Forest (rangeUpper)

Forest (objectVersion)

Domain (objectVersion)

Exchange Server 2000

2000 RTM

4397

N/A

4406

2000 SP3

4406

N/A

4406

Exchange Server 2003

2003 RTM

6870

6903

6936

2003 SP2

6870

6903

6936

Exchange Server 2007

2007 RTM

10637

10666

10628

2007 SP1

11116

11221

11221

2007 SP2

14622

11222

11221

2007 SP3

14625

11222

11221

Exchange Server 2010

2010 RTM

14622

12640

12639

2010 SP1

14726

13214

13040

2010 SP2

14732

14247

13040

2010 SP3

14734

14322

13040

Exchange Server 2013

2013 RTM

15137

15449

13236

2013 CU1

15254

15614

13236

2013 CU2

15281

15688

13236

2013 CU3

15283

15763

13236

2013 SP1

15292

15844

13236

2013 CU5

15300

15870

13236

2013 CU6

15303

15965

13236

2013 CU7-CU9*

15312

15965

13236

2013 CU10-CU20*

15312

16130

13236

Exchange Server 2016

2016 Preview

15317

16041

13236

2016 RTM

15317

16210

13236

2016 CU1

15323

16211

13236

2016 CU2

15325

16212

13236

2016 CU3

15326

16212

13236

2016 CU4-CU5*

15326

16213

13236

2016 CU6

15330

16213

13236

2016 CU7-CU9*

15332

16213

13236

 

*Note
It is recommended to always run the Active Directory preparation using Setup.exe /PrepareAD before applying an new cumulative update. Even though that the schema version might not have changed from the previous version preparing Active Directory applies any updates or changes to the default RBAC configuration.

 

Links

 

Enjoy Exchange Server!



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