How to stop or filter spam in Microsoft Outlook 2003 and later

Please note that this option is only effective if you have all of your contacts in your computer's address book.
Click on below link for information on adding contacts to your address book:
Adding a contact to your address book in Outlook

This method of filtering spam will:
1. Put all emails from the known senders / contacts in your Inbox.
2. Put the emails from unknown senders into your Junk folder.

1. Open Outlook
2. Add the email addresses of the people that you know to your Address Book / Contacts
3. Click on Tools > Options
4. Under Preferences (tab), Click on the Junk E-mail button
5. Under Options (tab), Check Safe Lists Only
6. Click on Safe Senders tab
7. Check "Also trust e-mail from my Contacts"
8. Click on "OK", "OK"

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Better mailbox organization to reduce spam:

You can better manage your emails and deal with spam, if you can organize your mailboxes into three folders:

1. Known Email Addresses folder - Only receives emails from known email addresses from your email address book.
2. Unknown Email Addresses folder - Only receives emails from unknown email addresses
3. Website Inquiries folder - Only receives emails from website inquiries and orders

The unknown email address folder is going to be primarily filled with spam. You can scan through that folder quickly for any legit email.