» Email Filtering
Cisco IronPort Secure Email Appliances - http://www.ironport.com/products/email_security_appliances.html
M86 Mail Marshal SMTP - http://www.m86security.com/products/email_security/mailmarshal-smtp.asp
McAFee Email Gateway ( formerly IronMail) - http://www.mcafee.com/us/enterprise/products/email_and_web_security/email/email_gateway.html
Websense Email Security - http://www.websense.com/content/EmailSecurity.aspx
GFI Mail Security - http://www.gfi.com/mailsecurity