How far back can I view activity logs?

Hey Guys,

Utilising lotus 6.5, was wondering how far back can I view the activity of users? I am guessing I would use the log.nsf file. We also have the IBM Tivoli Analyzer for Lotus Domino…

I am quite new to using Lotus Notes, however we are conducting an investigation, it is alleged that a user was reading other users emails in June 2014, that member has since left our office and there user ID was deleted at the time when they left (Start of 2015). Is there any way to find this? Thankyou.