Vote for ExchangeDefender

ExchangeDefender is a network service designed to secure your email by: Protecting you from SPAM (junk mail), viruses, trojans, malware, spyware and adware; Assuring message delivery by scanning and holding your email for up to 7 days of outage; Protecting you from DDoS (distributed denial of service) and Directory Harvesting (dictionary attacks); Protecting your confidential content from being emailed out of your network; Keeping you off blacklists by enforcing SPF and Domainkeys and scanning outgoing email; Stopping identity theft by blocking phishing and adding authenticity to your mail messages ... all without any software to install or maintain.