JaDy^tm EvALUEwARE^tm

After much experimentation, I got procmail working. I suppose there are other ways to do it, but this works. I had to abandon the desire to forward e-mail to external addresses (like her@aol.com); just couldn't get procmail to talk to sendmail. Procmail is a mail processing utility which can filter e-mail, especially useful for reducing the volume of unsolicited e-mail. An incidental benefit is the reduction of e-mail traffic on the server. Here is a procedure for implementation: - Build a catch-all e-mail alias with destination of {allmail} (or whatever you wish to name it). - Build a command-line e-mail alias for {allmail} with destination (command line) of {/bin/procmail}. - Build e-mail accounts for each of your real-name human users. These accounts are private and the names should never be published. The users must configure e-mail accounts on their own client computers. Don't build accounts for incoming e-mail, these are handled by procmail. - Prepare your {.procmailrc} recipe file saving it in the {/} directory on the server. Be sure to include {MAILDIR=/var/spool/mail} in that recipe file. Do not use "forward" action lines (those that begin with {!}) but instead use "save to a folder" action lines, naming the appropriate real-name e-mail account name. Windows users take note: Save recipe files in UNIX (LF only) format. - That's it -- everything else is standard procmail. - Here's an example .procmailrc: When confident with your procmail recipe design, change all the spam etc. names to {/dev/null}. Also, periodically review and delete the ..._mail files.

# Save as .procmailrc in UNIX (LF only) format. 10:13 PM 12/25/2002
JANE=maryjanedoe
JOHN=johnedwarddoe
QUOTE='"'
VERBOSE=no
SHELL=/usr/bin/sh 
SENDMAIL="/usr/sbin/sendmail"
MAILDIR=/var/spool/mail
DEFAULT=/var/spool/mail/prc.out
LOGFILE=/var/spool/mail/Procmail_log
LOGABSTRACT=all
:0
* ^From: +\/.*
{ FROM = $MATCH }
:0
* ^TO_ *\/.*
{ INTO = $MATCH }
:0
* ^TO_I-SALES@LIST.ADVENTIVE.COM
{ LOG="
Forward list-driven email. $MATCH
To:$INTO   From: $FROM 
"
  :0:
  $JANE
}
:0
* ^Subject:.*\/(delivery failed|returned mail|undelivered|undeliverable|virus found in sent message|virus detected|virus alert)
{ LOG="
Purge returned mail. $MATCH
To:$INTO   From: $FROM 
"
  :0:
  returned_mail
}
:0
* ^Subject:.*\/(award.*submission|site.*of.*the.*nite.*url.*submission)
{ LOG="
Purge award submission in subject. $MATCH
To:$INTO   From: $FROM 
"
  :0:
  awards_mail
}
:0
* ^Subject:.*(investigate.*your.*friends.*enemies.*lovers|prevent.*job.*monotony|find.*love.*today|humorsitesnewsletter|a.*very.*funny.*game|mortgage.*rates.*are.*down|credit.*card.*debt|crazy.*vegas.*casino|daily.*joke.*mail|adv.*website.*promotion|human.*growth.*hormone|get.*the.*credit.*you.*deserve|bulk.*email.*web.*hosting|thinking.*of.*refinancing)
{ LOG="
Purge spam. $MATCH
To:$INTO   From: $FROM 
"
  :0:
  spam_mail
}
:0
* ^Content-Type: multipart/
{
  :0 B
  * ^Content-Type:.*(attachment|application|audio).*($)*.*\/name=.*(bat|exe|pif|scr)['$QUOTE]*
  { LOG="
Purge mail with executable attached. $MATCH
To:$INTO   From: $FROM 
"
    :0
    /dev/null
  }
}
:0 B
* ^.*content-type: text/html.*
{
  :0 B
  * ^\/.*(onload=")*open()\(.*
  { LOG="
Purge mail with window.open in script. $MATCH
To:$INTO   From: $FROM 
"
    :0:
    winopen_mail
  }
  :0 B
  * ^\/.*<script.*src=
  { LOG="
Purge mail with script source. $MATCH
To:$INTO   From: $FROM 
"
    :0:
    scriptsrc_mail
  }
  :0 B
  * ^\/.*(hansi-font-family|3DSimSun)
  { LOG="
Purge mail with crazy fonts. $MATCH
To:$INTO   From: $FROM 
"
    :0:
    fonts_mail
  }
}
:0 B
* ^.*\/(this.*promotion.*was.*brought.*to.*you.*by.*opt.*in.*inc|this.*email.*was.*sent.*to.*you.*via.*saf-e.*mail.*systems|this.*submission.*was.*made.*using.*the.*webmaster.*multitool|this.*submission.*was.*made.*using.*the.*swiss.*army.*app|your.*email.*address.*was.*obtained.*from.*an.*opt-in.*list|if.*you.*would.*no.*longer.*like.*to.*receive.*our.*offers|you.*received.*this.*email.*because.*you.*signed.*up.*at.*one.*of.*our.*media.*partner.*websites|the.*new.*biz.*and.*info.*domain.*extensions.*are.*now.*conveniently.*available.*at)
{ LOG="
Purge spam. $MATCH
To:$INTO   From: $FROM 
"
  :0:
  spam_mail
}
:0
* ^TO_(ads|contact|feedback|web)@([-a-z0-9_]+\.)*(acme|acmecompany|acmestore)+.com
{ LOG="
Forward email.
To:$INTO   From: $FROM 
"
  :0:
  $JANE
}
:0
* ^TO_.*@([-a-z0-9_]+\.)*(acme|acmecompany|acmestore)\.com
{ LOG="
Forward email.
To:$INTO   From: $FROM 
"
  :0:
  $JOHN
}
:0
{ LOG="
Purge unknown mail.
To:$INTO   From: $FROM 
"
  :0:
  unknown_mail
}

Copyright © 2002 John G. Derrickson    -    2002DEC27