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A comment on Giving away the secrets of 99.3% email delivery. Parent comment

Re:Giving away the secrets of 99.3% email delivery by mike-cardwell on Wednesday February 01, 2012 @09:39AM (#3538082)
"Almost every spamfilter in the world will accept your e-mail and then silently discard it"

I don't think that's true. I've been actively running email servers for going on ten years now and the vast majority of mail servers do the opposite. They reject at SMTP time. Accepting and then silently discarding email is considered bad practice, and is not as common as SMTP time rejection.

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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

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