Re: [Asrg] Please critique my anti-spam system

[der Mouse <mouse at Rodents.Montreal.QC.CA>]

> Bouncing 0.1% of all spam to random uninvolved people *by design* is
> not an acceptable approach.

Especially not when it's being bounced in an idiosyncratic format, as
is (putatively) being done here.

I regularly get bounces of forgeries aimed my way.  Most of them are
rejected at SMTP time, because my mailer knows hwo to pick apart
multipart/report and look through the headers to see if they exhibit
certain characteristcs that all legitimate mail from me show.  (It's a
weak test - it lets through a forgery every now and then - but it's
good enough to do a lot of good.)  Hosts that bounce forged mail to me
in other formats get a little request to please either stop doing
accept-and-bounce or start doing multipart/report bounces; hosts that
persist get blocked.

Hosts that persist in sending me Michael-Kaplan-style not-quite-bounce
challenges despite an explicit request that they stop will get blocked
too - assuming any such ever come to exist.

/~\ The ASCII				der Mouse
\ / Ribbon Campaign
 X  Against HTML	       mouse at rodents.montreal.qc.ca
/ \ Email!	     7D C8 61 52 5D E7 2D 39  4E F1 31 3E E8 B3 27 4B

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