If all the emails to your domain name are being marked as "Whitelisted" by MailScanner (this will appear in the email headers), the most liekly explanation of this is that you have added your own domain name as a "Whitelisted" entry within MailScanner. When you add a domain name or email address to the whitelist, all mail both TO or FROM that domain name will be marked as white listed and not marked as spam.
