Information Store

The diagnostics logging categories for the information store are organized into four groups: Internet Protocols, System, Public, and Private.

Diagnostics logging service	Diagnostics logging group	Diagnostics logging category	Description
MSExchangeIS	Internet Protocols/ IMAP4rev1	Content Engine	Events related to converting messages from the database format of the information store to the formats required for IMAP4.
MSExchangeIS	Internet Protocols/ IMAP4rev1	Connections	Events related to connecting and disconnecting e-mail clients.
MSExchangeIS	Internet Protocols/ IMAP4rev1	Authentication	Events related to e-mail client logon and password authentication.
MSExchangeIS	Internet Protocols/ IMAP4rev1	Client Actions	Events that log the IMAP4 commands issued by e-mail clients.
MSExchangeIS	Internet Protocols/ IMAP4rev1	Configuration	Events related to configuration problems.
MSExchangeIS	Internet Protocols/ NNTP	Content Engine	Events related to converting messages from the database format of the information store to the formats required for NNTP.
MSExchangeIS	Internet Protocols/ NNTP	Internet News Service	Events related to retrieving and submitting articles to another NNTP server, usually an Internet service provider (ISP).
MSExchangeIS	Internet Protocols/ NNTP	Connections	Events related to connecting and disconnecting NNTP clients.
MSExchangeIS	Internet Protocols/ NNTP	Authentication	Events related to NNTP client logon and password authentication.
MSExchangeIS	Internet Protocols/ NNTP	Client Actions	All actions of NNTP clients and NNTP inbound push newsfeeds.
MSExchangeIS	Internet Protocols/ NNTP	Configuration	Events related to configuration problems.
MSExchangeIS	Internet Protocols/ NNTP	Replication	Events related to NNTP outbound push newsfeeds.
MSExchangeIS	Internet Protocols/ NNTP	NNTP Pull Newsfeed	Events related to NNTP inbound pull newsfeeds.
MSExchangeIS	Internet Protocols/ POP3	Content Engine	Events related to converting messages from the database format of the information store to the formats required for POP3.
MSExchangeIS	Internet Protocols/ POP3	Connections	Events related to connecting and disconnecting e-mail clients.
MSExchangeIS	Internet Protocols/ POP3	Authentication	Events related to e-mail client logon and password authentication.
MSExchangeIS	Internet Protocols/ POP3	Client Actions	Events that log the POP3 protocol commands issued by e-mail clients.
MSExchangeIS	Internet Protocols/ POP3	Configuration	Events related to configuration problems.
MSExchangeIS	System	Recovery	Events generated when the information store reads and verifies transaction log files when the information store is started.
MSExchangeIS	System	General	Miscellaneous system events.
MSExchangeIS	System	Connections	Attempts to establish connections, both successful and unsuccessful.
MSExchangeIS	System	Table Cache	Events related to the table cache.
MSExchangeIS	System	Content Engine	Events related to converting messages from the database format of the information store to the formats required for other services.
MSExchangeIS	System	Performance Monitor	Events related to Performance Monitor counters.
MSExchangeIS	System	Move Mailbox	Events related to moving mailboxes.
MSExchangeIS	System	Download	Events related to downloading mail or public folder contents to personal folder files.
MSExchangeIS	Public	Transport General	Miscellaneous events related to the transfer of messages to and from public folders.
MSExchangeIS	Public	General	Miscellaneous public information store events.
MSExchangeIS	Public	Replication DS Updates	Changes in replication configurations, including adding, deleting, and editing.
MSExchangeIS	Public	Replication Incoming Messages	Receipt of replication messages, including the numbers of updates.
MSExchangeIS	Public	Replication Outgoing Messages	Replication messages sent, including the number of updates.
MSExchangeIS	Public	Non-delivery Reports	Replication messages that could not be delivered.
MSExchangeIS	Public	Transport Sending	Sending messages according to public folder rules.
MSExchangeIS	Public	Transport Delivering	Delivery of messages to a public folder. The origin of the message can be a different information store.
MSExchangeIS	Public	Transfer Into Gateway	Receipt and delivery of mail to public folders from a gateway.
MSExchangeIS	Public	Transfer Out of Gateway	Sending mail from public folders to a gateway.
MSExchangeIS	Public	MTA Connections	Events related to establishing connections between the public information store and the MTA.
MSExchangeIS	Public	Logons	Successful and unsuccessful attempts to log on.
MSExchangeIS	Public	Access Control	Events related to assigning permissions.
MSExchangeIS	Public	Send On Behalf Of	Establishes rules directing public folders to send messages on behalf of a sender. These events can be used to trace security violations.
MSExchangeIS	Public	Send As	Establishes rules directing public folders to send messages with a different sender name. These events can be used to trace security violations.
MSExchangeIS	Public	Rule	Application of rules, including recognizing the situations where rules apply, applying them, and verifying the results.
MSExchangeIS	Public	Storage Limits	Reports when one or more public folders have exceeded their size limits. Storage limit events are reported during scheduled information store maintenance.
MSExchangeIS	Public	Replication Site Folders	Events related to the replication of site folders, including the offline Address Book and Microsoft Schedule+ free and busy times.
MSExchangeIS	Public	Replication Expiry	Events related to applying age limits.
MSExchangeIS	Public	Replication Conflicts	Events reported when two public folders attempt to update the same items simultaneously.
MSExchangeIS	Public	Replication Backfill	Events related to an information store requesting and receiving missed replication updates.
MSExchangeIS	Public	Background Cleanup	Events related to the background deletion of messages, folders, and attachments for public information stores.
MSExchangeIS	Public	Replication Errors	Unexpected replication errors.
MSExchangeIS	Public	IS/DS Synchronization	Events related to public information store and directory synchronization.
MSExchangeIS	Public	Views	Events related to caching public folder views.
MSExchangeIS	Public	Replication General	Miscellaneous events related to the replication of public folders.
MSExchangeIS	Public	Download	Events related to downloading public folder contents to personal folder files.
MSExchangeIS	Private	Transport General	Miscellaneous events related to the transfer of messages to and from private information stores.
MSExchangeIS	Private	General	Miscellaneous private information store events.
MSExchangeIS	Private	Transport Sending	Events related to sending messages.
MSExchangeIS	Private	Transport Delivering	Delivery of messages to a mailbox. The origin of the message can be a different information store.
MSExchangeIS	Private	Transfer Into Gateway	Receipt and delivery of mail to mailboxes from a gateway.
MSExchangeIS	Private	Transfer Out of Gateway	Sending mail from mailboxes to a gateway.
MSExchangeIS	Private	MTA Connections	Events related to establishing connections between the private information store and the MTA.
MSExchangeIS	Private	Logons	Successful and unsuccessful attempts to log on.
MSExchangeIS	Private	Access Control	Events related to applying permissions.
MSExchangeIS	Private	Send On Behalf Of	Events generated when users send messages on behalf of another user. These events can be used to trace security violations.
MSExchangeIS	Private	Send As	Events generated when users send messages with a different sender name. These events can be used to trace security violations.
MSExchangeIS	Private	Rule	Application of rules, including recognizing the situations where rules apply, applying them, and verifying the results.
MSExchangeIS	Private	Storage Limits	Reports when mailboxes have exceeded their size limits. Storage limit events are reported during scheduled information store maintenance.
MSExchangeIS	Private	Background Cleanup	Events related to the background deletion of messages, folders, and attachments for private information stores.
MSExchangeIS	Private	IS/DS Synchronization	Events related to the private information store and directory synchronization.
MSExchangeIS	Private	Views	Events related to caching mailbox folder views.
MSExchangeIS	Private	Download	Events related to downloading mail to personal folder files.

Critical Event Categories

Critical events generated by the information store are written to the Windows NT application event log regardless of the logging levels set for any category. These categories do not appear in the Diagnostics Logging property page, but they do appear in the event log.

Event Viewer source	Event Viewer category	Description
MSExchangeIS	None	Error events.
MSExchangeISPriv	DS/IS Consistency	Events generated when the DS/IS consistency adjustment utility runs on private information stores.
MSExchangeISPub	DS/IS Consistency	Events generated when the DS/IS consistency adjustment utility runs on public information stores.