Your SPAM filtering level for Outlook 2003 is set to Moderate by default. Review the definitions below to see if you want to retain the default Moderate filtering or change to the more aggressive Strong filtering.
Advantages: Most (if not all) legitimate messages will go into your inbox however, your Junk E-mail folder should still be checked for any legitimate messages so they can be placed in your Safe Senders List whereby Outlook can “learn” to deliver them to your inbox.
Disadvantages: More unwanted (SPAM) messages may also go into your inbox. These messages can be placed in your Blocked Senders List so that Outlook can “learn” to filter them more accurately, but if you still receive too many unwanted messages in your inbox you may want to consider changing to Strong SPAM Filtering.
Advantages: Most (if not all) unwanted (SPAM) messages will be delivered to your Junk E-mail folder.
Disadvantages: There is an increased probability that some legitimate messages will also be delivered to your Junk E-mail folder. This folder will need to be checked regularly until all of your legitimate senders have been placed in your Safe Senders List and Outlook has “learned” to deliver their messages to your inbox.