Alerts
Hours Logon Alert. If the mailbox activity seems to be normal, the activity is
probably through a voice service thru-dialer.
Check security restrictions on all thru-dialers on your system. Ensure that access to
the public network is blocked.
Excessive Failed Logons Alert
This alert report is used to notify you when the number of failed logon attempts due
to an invalid password meets or exceeds a threshold. An unusual number of
unsuccessful logons may be due to hacker activity. A hacker will continue to try
passwords to attempt to penetrate one or more mailboxes on the system.
The threshold is the number of failed logons set by the administrator. The report
shows only the failed logons.
Figure 5-8
Excessive Failed Logons Alert
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