Unraveling the Spam Engines of Mailbox Providers

 

Provider	Spam Engine
aol.com	Proprietary
comcast.net	Cloudmark
eclipso.de	Not Published
freenet.de (Germany)	Proprietary
gmail.com	Postini
gmx.com	United Internet/GMX/Spamhaus
hotmail.com	Forefront/Exchange/Symantec/Spamhaus
inbox.lv	Kaspersky
mail.com	United Internet/GMX/Spamhaus
mail.ee (Estonia)	Kaspersky
mail.ru (Russia)	Kaspersky
netcourrier.com (France)	NET-C
outlook.com	Forefront/Exchange/Symantec/Spamhaus
rambler.ru (Russia)	Not Published
seznam.cz (Czech Republic)	Not Published
yahoo.com	Spam Guard
yandex.com (Russia)	Spamooborona & Dr. Web
zoho.com	ClamAV