Active Directory Schema Changes (SP3)

Applies to: Exchange Server 2007 SP3

Topic Last Modified: 2011-03-16

Microsoft Exchange Server adds new exADNoMk schema classes and attributes, and modifies new ones. This topic provides a summary of the Active Directory schema changes that are made when you install Microsoft Exchange 2007 Service Pack 3 (SP3). Refer to the .ldf files for more information about the changes to the Active Directory schema. The .ldf files are located in the \AMD64\Setup\Data\ folder on the Setup media.

This topic includes the following sections:

  • Classes Modified by Exchange 2007 SP3
  • Attributes Modified by Exchange 2007
  • Classes Added by Exchange 2007 SP3
Classes Modified by Exchange 2007 SP3

The following table lists the class modifications that Exchange 2007 SP3 makes to the Active Directory schema.

Class Change Attribute/Class

msExchSMTPExtendedProtectionPolicy

add:mayContain

ms-Exch-Smtp-Receive-Connector

msExchPopImapExtendedProtectionPolicy

add:mayContain

ms-Exch-Protocol-Cfg-Imap-Server

msExchExtendedProtectionSPNList

add:mayContain

ms-Exch-Protocol-Cfg-Pop-Server

msExchPopImapExtendedProtectionPolicy

add:mayContain

ms-Exch-Protocol-Cfg-Pop-Server

msExchExtendedProtectionSPNList

add:mayContain

ms-Exch-Protocol-Cfg-Imap-Server

msExchExtendedProtectionSPNList

add:mayContain

ms-Exch-Smtp-Receive-Connector

Attributes Modified by Exchange 2007 SP3

The following table lists the attribute modifications that Exchange 2007 SP3 makes to the Active Directory schema.

Attribute Change Value

ms-Exch-UM-Enabled-Text

rangeUpper

4096

ms-Exch-UM-Fax-Message-Text

rangeUpper

4096

ms-Exch-UM-Reset-PIN-Text

rangeUpper

4096

ms-Exch-UM-Voice-Mail-Text

rangeUpper

4096

ms-Exch-UM-Protected-Voice-Mail-Text

rangeUpper

4096

ms-Exch-SMTP-Extended-Protection-Policy

rangeUpper

1024

msExchPopImapExtendedProtectionPolicy

rangeUpper

1024

msExchExtendedProtectionSPNList

rangeUpper

1024

Comments about Modified Attributes

Exchange 2007 Service Pack 2 (SP2) sets these attribute values to 1,024 bytes. However, this size may be insufficient in an environment in which a disclaimer is included together with every voice mail message or fax message. To address this issue, Exchange 2007 SP3 increases the upper limit of these attributes to 4,096 bytes.

Classes Added by Exchange 2007 SP3

The following classes are added when you install Exchange 2007 SP3:

  • ms-Exch-SMTP-Extended-Protection-Policy
  • msExchPopImapExtendedProtectionPolicy
  • msExchExtendedProtectionSPNList
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Community Content

Shakti Rathore
Errors in Classes & Attributes
There is a problem with this article with what is actually visible in AD.<br /><br />For Example in this article <span>msExchSMTPExtendedProtectionPolicy</span> is mentioned as a Class, but if checked in Schema it will be listed as an Attribute and not class, same goes for rest of the classes which have been mentioned in this article.<br /><br />Kindly review the values and make corrections as applicable.
Tags : contentbug

Phil Brassington
Error in Class name ms-Exch-Cfg-Pop-Server
ms-Exch-Cfg-Pop-Server doesn't exist in the schema reference or LDIF files; I assume it should be ms-Exch-Protocol-Cfg-Pop-Server.
Tags : contentbug

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