Clyton is a feature-rich email client designed to keep your emails private and filter spam messages.The spam filter is highly configurable and supports DNS blacklist checking (DNSBL). Expect 85% of spam to be eliminated with the default configuration. Email that is suspicious but not obviously spam is quarantined for 24 hours and then retested. The built-in address book supports personalized mass-mailings. Received email cannot run scripts, download multimedia, or use embedded objects without the user's approval.