Enable Spam Filter in Microsoft Outlook 2003

To enable to the basic spam filter:

In Outlook:

1. Ensure that Outlook 2003 is operating in cached mode. If the word "Online" or "Offline" appears in the bottom right corner of Outlook switch to cached mode. You can find instructions for enabling cached mode here.
2. To turn on the spam filter select Actions > Junk Email > Junk Email Options.
3. Click High > OK. The spam filter is now enabled.

In the Control Panel:

1. Login to the Control Panel and click on Spam Settings.
2. Set Spam Filtering to Enabled.
3. Set the “Move to Junk email” and “Delete” thresholds.

In OWA:

1. Login to OWA.
2. Select Options.
3. Click “Filter Junk Email…”
4. Click Save and Close.

Microsoft Outlook 2003 will now move any emails that it determines to be spam into the "Junk Email" folder. You should go through this folder on a periodic basis to clean it out, as well as to check for legitimate emails mistakenly caught by the spam filter.

If there is an email in the Junk Email folder that is not spam, right-click on the email and select
Junk Email > Mark as Not Junk.