Spam filters do a good job of catching most unwanted e-mail, but some might still reach you. Most spam is designed to get you to respond with your own email or to click a link to "unsubscribe". When you respond or click the "unsubscribe" link, the sender can take your email address and add it to a SPAM database of active email addresses. You might then start receiving large amounts of SPAM in your inbox. To be on the safe side, don't respond or click the "unsubscribe" links on any unsolicited emails.