Yes. Check the 'protect E-Mail links' box on 'Encryption type' tab. Your site will be protected from spammers. E-mail grabbers will fail to extract e-mail addresses from the protected web site. Keep in mind that those older spam-lists will still be alive and you probably will be receiving unsolicited mail for some time, but newer spam-lists will not contain your addresses so the more time passes the less you are spammed.