A fax activity log provides you with detailed information about incoming and outgoing fax traffic. It can help you track user's fax activity, track performance, and identify problems and bottlenecks. The activity log uses two text files, InboxLOG.txt and OutboxLOG.txt, located in <systemdrive>\ProgramData\Microsoft\Windows NT\MSFax\ActivityLog.


The Fax service records all Fax service activity in the activity logs. The logs may contain sensitive or personal information. Because of this, activity logging is disabled by default.

To enable activity logging for a fax server
  1. Open Fax Service Manager.

  2. In the left pane, right-click Fax, and then click Properties.

  3. On the Activity Logging tab, select the Log incoming fax activity check box to start logging incoming faxes and the Log outgoing fax activity check box to start logging outgoing faxes.

  4. You should receive an alert that the Fax service needs to be stopped and then restarted. If you do not, then right-click Fax, click Stop, right-click Fax again, and then click Start.

Additional considerations

  • To configure fax components, you must be a member of the Administrators group or you must have been delegated the appropriate authority.

  • To open Fax Service Manager, click Start, point to Administrative Tools, and then click Fax Service Manager.

Additional references