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Top Forums UNIX for Beginners Questions & Answers Answers to Frequently Asked Questions Email Antispam Techniques and Email Filtering Procmail recipe: blocking 'unsubscribe and opt-out' messages.... Post 34334 by Neo on Monday 17th of February 2003 01:41:14 PM
Old 02-17-2003
Procmail recipe: blocking 'unsubscribe and opt-out' messages....

Here is a crude procmail recipe that I quickly created (NOT a procmail recipe expert, btw) that has been catching lots of spam (current second after the charset_spam recipe posted earlier):

Code:
:0B
* .*If.you.do.not.wish.to.receive.[further|additional].[email|mailings].*
more_spam

:0B
* You.requested.to.receive.this.mailing
more_spam

:0B
* [Uu]nsubscribe|[Oo][Pp][Tt]-[Oo][Uu][Tt]|[Rr]emoved
* [Cc]lick [Hh]ere
* HTML
more_spam

OBTW, I think I read somewhere that procmail is not case sensitive within regular expressions and I've tested this and it seems they are not. So, the above can be simplified to:

Code:
:0B
* Unsubscribe|Opt-Out|Removed
* Click Here
* HTML
more_spam

 

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proclint(1)							    2008-12-09							       proclint(1)

NAME
proclint - Lint procmail rc files for proper syntax SYNOPSIS
proclint [options] <procmail *.rc files> OPTIONS
-h, --help Display short help. -i, --includerc Scan and possibly list files included in code with INCLUDERC statements. -I, --noinclude Do not scan INCLUDERC references (default). -l, --list List lines in the procmail recipe files. -L, --nolist Do not list lines, except for errors (default). -p, --procmailrc Check $HOME/.procmailrca DESCRIPTION
Check procmail rc files for proper syntax, recipe nesting, etc. The output consists of: "LINE-NUMBER:FLAG:DEPTH: text". FLAG is one of: R recipe C condition A action (redirect, '!', or pipe, '|') F folder = assignment + continuation E *line may be erroneous* DEPTH indicates the depth of the recipe nesting and is shown only when greater than zero. BUGS
There are many bugs. E.g. multiline handling is not done (continued strings). Please regard the output as advisory only.x STATUS CODES
Program returns non-zero in case problem is found. ENVIRONMENT
None. FILES
None. SEE ALSO
procmail(1) AUTHORS
Program was written by Alan K. Stebbens <aks@sgi.com>. This manual page was written by Jari Aalto <jari.aalto@cante.net>. Released under license GNU GPL v2 or (at your option) any later version. For more information about license, visit <http://www.gnu.org/copyleft/gpl.html>. proclint 2008-12-09 proclint(1)
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