Re:Giving away the secrets of 99.3% email delivery
by kbutler on Wednesday February 01, 2012 @12:08PM
(#3538848)
Server-side host-based filter (e.g., blacklists): reject at SMTP
Server-side content-based filter (e.g., spamassassin): usually marks up the email based on rules, and may either reject/discard it, or leave it for the email client
Email-client filter (e.g., in thunderbird, outlook extensions, etc.): silently discards
Server-side content-based filter (e.g., spamassassin): usually marks up the email based on rules, and may either reject/discard it, or leave it for the email client
Email-client filter (e.g., in thunderbird, outlook extensions, etc.): silently discards