Use the spam filter in your email application Most popular email applications such as Outlook, Entourage and Eudora let you use a built-in spam filter to shunt unwanted email into a special 'junk' folder. Get familiar with your email application's spam filtering capabilities or install any of a number of third party products (below) that work with common email programs.

I recommend:  Spamihilator works with almost every email client available. Spam Sieve works with many Macintosh email client applications.

Include anti-spam in your Internet security software Don't stop with software that blocks viruses. Get a system that helps control spam as well.

I recommend:  Internet security software for small business from Symantec covers all the bases, including anti-spam.

Use a server-based spam filtering service Services that stop spam before it ever reaches your computer can be effective. These services include 'white lists' and 'black lists' to block senders and work with your existing email address.

I recommend:  Spam Cop and Spam Arrest are both effective and well-regarded solutions, among others.

Surf anonymously Never post your email address to forums, blogs, news groups or guest books unless it is absolutely necessary. If you must leave an email address, use a fake one or create an alternate email account that you can use just for this purpose.

I recommend:  Services that provide 'disposable' or 'one time use' addresses that expire after a short period of time include Spam Gourmet and Trash Mail.

Don't open spam messages or attempt to unsubscribe from unknown lists Images, attachments and offers to unsubscribe from mailing lists are common methods that spammers often use to verify that you have received their email and that your address is real.

I recommend:  Simply delete any spam that you receive instead of opening it or trying to unsubscribe. Use these helpful spam tactics.

Disguise your email address on your Web site or email signature Don't use the mailto link on your Web page(s). Instead use an image that displays your address without a link or conceal your address by removing the @ sign: myname(at)mydomain.com. Do the same with your email signature at the bottom of your email.

I recommend:  Hide-email-script.com provides a free script for concealing your address in mailto links.

Change your email address If you're already receiving tons of spam, retire your old address and create a new one. See the tips on choosing a new email address below. To guard against future spam, check with your mail service about filters or safe lists to 'whitelist' email senders of which you approve.

I recommend:  Google's Gmail service has a nice tutorial on how to switch your email address.

Choose email addresses carefully Avoid common or easy to guess user names such as webmaster@, info@, joe@, mary@, etc. Using your own unique domain name instead of common ones like Hotmail or Yahoo also helps.

I recommend:  Find where to get a unique domain name at this list of inexpensive third party email account providers.