Key Services That Are Disabled for Back-End Servers

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As previously mentioned, all non-essential services for a back-end Exchange server are disabled. In some cases, depending on the functionality you require, you may need to re-enable some services. To be consistent among your servers, you should use the security policy templates available from the Microsoft Download Center or create your own policies to apply at the organizational unit level.

The following list describes some of the services that are disabled:

  • Microsoft Exchange Event

    Introduced in Exchange Server 5.5, the Microsoft Exchange Event service (MSExchangeES) supports server-side scripts triggered by folder events, either in public folders or individual mailboxes. MSExchangeES is provided in Exchange 2003 for backward compatibility with Exchange 5.5 event scripts. However, new applications written specifically for Exchange 2003 should use native Exchange store events instead of MSExchangeES. For more information about these new applications, see the Exchange 2003 Software Development Kit (SDK) available on MSDN.

  • Microsoft Search

    To provide increased functionality when searching for documents that reside in a store, the Microsoft Search service (MSSEARCH) creates and manages indexes for common key fields. An index allows Outlook users to search for documents more rapidly. With full-text indexing, the index is built prior to the client search, thereby enabling faster searches. Text attachments can also be included in the full-text indexing. Both the Microsoft Exchange Information Store service and MSSEARCH must be running for the index to be created, updated, or deleted.

  • Microsoft Exchange Site Replication Service

    If an Exchange 2003 server belongs to an existing Exchange 5.5 site, the Microsoft Exchange Site Replication Service (MSExchangeSRS) is responsible for replicating Exchange 5.x site and configuration information to the configuration naming partition of Active Directory.

  • Microsoft Exchange POP3

    The Microsoft Exchange POP3 service (POP3Svc) is responsible for providing POP3 access to mailboxes. By default, this service is disabled on new Exchange Server 2003 installations.

  • Microsoft Exchange IMAP4

    The Microsoft Exchange IMAP4 service (IMAP4Svc) is responsible for providing IMAP4 access to mailboxes and public folders. By default, this service is disabled on new Exchange Server 2003 installations.

  • Network News Transfer Protocol (NNTP)

    The NNTP service (NntpSvc) is responsible for providing NNTP access to newsgroups maintained in public folders. By default, this service is disabled on new Exchange Server 2003 installations.