The information in the log file

Domino® logs activity in the log file (LOG.NSF).

The information is not visible in the log file, but you can access the information in the file by writing an API program. For information about writing an API program to access this information, see the Lotus® C API Toolkit for Notes/Domino. The toolkit is available for download; for information about the download, see Additional documentation resources in the related topics.

Note: Activity logging records in the log file are hidden. The records you can see in the log file do not contain as much detail as activity logging records and are not updated as often as activity logging records. You can view activity logging information by running Activity Analysis.

You use the Domino® Administrator to specify which types of activity to log.

Table 1. Types of activities you can log

Activity type

What this logs


When a Domino® server runs scheduled agents, as well as the running time of the agents


Web server requests


Activity generated during an IMAP session


Activity generated by all LDAP activity. Each type of LDAP activity generates a separate record. The types of LDAP activity include abandon, add, bind, compare, delete, extended, modify, modify distinguished name, search, and unbind.


Activity generated by mail and mail-related messages being routed to and from the server. The messages can come from a Domino® server or an SMTP server.

Notes® Database

When an Notes® clients and Domino® servers open, use, and close Notes® databases and the duration of use.

Notes® Passthru

When users or servers connect through a Domino® pass-through connection, as well as the activity that is generated through that connection

Notes® Session

When Notes® clients and Domino® servers acting as clients start and end sessions with a Domino® server


Activity generated during a POP3 session


Activity generated by replication with another server or with a client


Activity generated during an SMTP session