Many Internet Service Providers (ISP) or e-mail programs provide junk e-mail filters that can serve as the first line of defense against spam.

Make sure your spam filters work the way you want. If your spam filter is set at a very restrictive setting that weeds out as many suspect messages as possible, it might be sending legitimate e-mail to the electronic dump. Check your junk e-mail box regularly to make sure that every message going there is truly junk, or loosen the restrictions.