You may have opted-in when you signed up for the service. You can unsubscribe by following the 'Unsubscribe' instructions found in the email or simply update your email account. To do this, log in to the email account, click 'Options,' click 'Personal Info,' scroll down to 'Preferences,' and select 'No' under Contact me occasionally about my service and special offers . If you are an Everyone.net site partner and if you receive emails from us, you can unsubscribe in the Control Center. Once logged in to your Control Center account, click 'Edit My Profile,' click 'Update Profile,' scroll down to 'Everyone.
Spammers send spam as a form of free advertising, which is illegal in most cases.
It is similar to a telemarketer calling you collect. No other kind of advertising costs the advertiser so little and the recipient so much. The recipients are not the only victims ISPs are also taken advantage of. Many ISPs promote their free trial offers to the public, which prompts spammers to 'sign-up' and give the free service a try. The spammer then uses this opportunity to send spam to numerous email addresses, both valid and invalid ones.