NNTP

Diagnostics logging service	Diagnostics logging category	Description
MSExchangeIS	Content Engine	Events related to converting messages from the database format of the information store to the formats required for NNTP.
MSExchangeIS	Internet News Service	Events related to retrieving and submitting articles to another NNTP server, usually an ISP.
MSExchangeIS	Connections	Events related to connecting and disconnecting NNTP clients.
MSExchangeIS	Authentication	Events related to NNTP client logon and password authentication.
MSExchangeIS	Client Actions	All actions of NNTP clients and NNTP inbound push newsfeeds.
MSExchangeIS	Configuration	Events related to configuration problems.
MSExchangeIS	Replication	Events related to NNTP outbound push newsfeeds.
MSExchangeIS	NNTP Pull Newsfeed	Events related to NNTP inbound pull newsfeeds.