The article that reported the numbers from the e-mail abuse reported that of 356 employers, 60% reported problems of which 42% had dismissed staff and 27% had suspended staff.

I also have problems with my employees and what I suspect would be considered e-mail abuse.

I was wondering if any of those who had dismissed or suspended staff would share their company policy/procedure for e-mail/internet usage by employees.
What kind of tracking and documentation are they able to get, and from whom, for proof of abuse? I would appreciate any help that you might be able to provide.