Why doesn't the BLOCKED TOP LEVEL (INTERNATIONAL) DOMAINS (in the JUNK EMAIL OPTIONS) work in Outlook 2003?

Isn't this list meant to block all incoming email with a domain ending in a country's suffix?

Microsoft blurb:

" Blocked Top-Level Domains List (Blocked Top-Level Domains List: A list that allows you to block top-level domain names. Blocking country/region top-level domains allows you to filter unwanted e-mail messages you receive from specific countries or regions.) "

Why then am I STILL receiving SPAM everywhere from @abacusbio.co.nz to @zelen.ru in a company exchange email account that is NOT used for surfing or establishing online subscriptions?

You have to make sure you set up your Blocked Regions list as described in this article. Also read the section entitled "How to stop client rules from running on Exchange 2003" because, depending on the version of Exchange your company is running, there will be different features available. In other words, just because Microsoft says it is a new feature does not mean your company has the infrastructure to support the new feature.

If people send you chain letters, then you can easily get added to spammer lists. Even if you do not forward the chain mail along, your email address is plainly visible to anyone who does forward it, as long as they got the email at the same time as you did. If I email you and 40 other people and you delete it, any of those other 40 can see your email address, as can anyone they forward the email to. And so on.