Hello!
http://technet.microsoft.com/en-us/library/dd335144%28v=exchg.150%29.aspx
"By default, audit logging is configured to store audit log entries for90 days. After 90 days, the audit log entry is deleted. You can change the audit log age limit using theAdminAuditLogAgeLimit parameter."
http://technet.microsoft.com/en-us/library/dd335109%28v=exchg.150%29.aspx
"The audit log age limit determines how long audit log entries will be retained. When a log entry exceeds the age limit, it's deleted.The default is one year."
So wich is correct - 90 days or a year???
Thank you in advance,
Michael