MailScanner.conf questions

[Billy A. Pumphrey]

1.  In the web site about the MailScanner.conf it says (with some text
taking out) talking about spam.whitelist.rules:
Is Definitely Not Spam
You will probably want to include your own site (or your own site's IP
addresses) in this ruleset.

Does that mean put:
From:           *@domain.com or
FromOrTo        *@domain.com 

It would seem that if it said FromOrTo, that it would treat all mail as
not spam and "not" perform any blocking.

2.  Is this how to disable blocking for a user ID:
FromOrTo:       user at domain.com yes

3. Do you have to configure the spamassassin white list also, being that
you have to configure the whitelist in 2 places?
Spam.whitelist.rules and spam.assassin.prefs.conf?

Thank you for any answers.  
Billy Pumphrey