Adding a disclaimer (altermime) or footer

From Zimbra :: Wiki

Note: This article adds footer text to all mails sent by Zimbra users. See also the very cool http://wiki.zimbra.com/index.php?title=Domain_Disclaimer_Extension_Admin_UI

Altermime

1) Download altermime from http://www.pldaniels.com/altermime/

2) Compile

  make

3) Install altermime

  cp altermime /usr/bin/
  chown root.root /usr/bin/altermime
  chmod 755 /usr/bin/altermime

4) Add a "filter" user

  useradd -r -c "Postfix Filters" -d /var/spool/filter filter

5) Create a filter directory

  mkdir /var/spool/filter
  chown filter.filter /var/spool/filter
  chmod 750 /var/spool/filter

Postfix

6) Backup you master.cf file

  cp /opt/zimbra/postfix/conf/master.cf /opt/zimbra/postfix/conf/master.cf.orig

7) Modify /opt/zimbra/postfix/conf/master.cf (/opt/zimbra/postfix/conf/master.cf.in for version > 5.0.10)

  smtp      inet  n       -       n       -       -       smtpd
      -o content_filter=dfilt:
  dfilt   unix    -       n       n       -       -       pipe
      flags=Rq user=filter argv=/opt/zimbra/postfix/conf/disclaimer -f ${sender} -- ${recipient}

7a) OPTION. To ensure disclaimer is added only to outbound mail:

   192.168.0.1:smtp    inet  n       -       n       -       -       smtpd
   192.168.0.2:smtp    inet  n       -       n       -       -       smtpd
      -o content_filter=dfilt:
   127.0.0.1:smtp      inet  n       -       n       -       -       smtpd
      -o content_filter=dfilt:
   dfilt   unix    -       n       n       -       -       pipe
   flags=Rq user=filter argv=/opt/zimbra/postfix/conf/disclaimer -f ${sender} -- ${recipient}

The first IP (192.168.0.1) should be the Incoming IP of the Zimbra server.
The second IP (192.168.0.2) should be the Outgoing IP of the Zimbra server.

8) Create a disclaimer file in /opt/zimbra/postfix/conf/disclaimer.txt and disclaimer.html

For example:
/opt/zimbra/postfix/conf/disclaimer.txt

  _____________________________________________________________________
  
  This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed.
  If you have received this email in error please notify the system manager. Please note that any views or opinions presented in this email are solely   
  those of the author and do not necessarily represent those of the company. Finally, the recipient should check this email and any attachments for 
  the presence of viruses. The company accepts no liability for any damage caused by any virus transmitted by this email.
  
  Company X, Suite# 1, Street, City, Country, www.company.com

/opt/zimbra/postfix/conf/disclaimer.html

   _____________________________________________________________________<br>
   <br>
   This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed.<br>
   If you have received this email in error please notify the system manager. Please note that any views or opinions presented in this email are solely   <br>
   those of the author and do not necessarily represent those of the company. Finally, the recipient should check this email and any attachments for <br>
   the presence of viruses. The company accepts no liability for any damage caused by any virus transmitted by this email.<br>
   <br>
   Company X, Suite# 1, Street, City, Country, <a href="http://www.company.com"><b>www.company.com<b></a><br>

9) Create disclaimer script in /opt/zimbra/postfix/conf/disclaimer

  #!/bin/sh
  INSPECT_DIR=/var/spool/filter
  SENDMAIL=/opt/zimbra/postfix/sbin/sendmail
  FOLDER_DISCLAIMER=/opt/zimbra/postfix/conf
  
  # Exit codes from <sysexits.h>
  EX_TEMPFAIL=75
  EX_UNAVAILABLE=69
  
  # Clean up when done or when aborting.
  trap "rm -f in.$$" 0 1 2 3 15
  
  # Start processing.
  cd $INSPECT_DIR || { echo $INSPECT_DIR does not exist; exit $EX_TEMPFAIL; }
  
  TEXT_DISCLAIMER=`grep "[a|A-z|Z]" ${FOLDER_DISCLAIMER}/disclaimer.txt | grep -v "_" | tail -2 | head -1`
  
  cat > in.$$ || { echo Cannot save mail to file; exit $EX_TEMPFAIL; }
  
  nohup grep "${TEXT_DISCLAIMER}" in.$$ > /dev/null 2>&1
  
  if [ ! "$?" = 0 ]; then
  /usr/bin/altermime --input=in.$$ --disclaimer=${FOLDER_DISCLAIMER}/disclaimer.txt --disclaimer-html=${FOLDER_DISCLAIMER}/disclaimer.html \
  --xheader="X-Copyrighted-Material: Please visit www.company.com/privacy.htm" || { echo Message content rejected; exit $EX_UNAVAILABLE; }
  fi
  
  $SENDMAIL -i "$@" < in.$$
  
  exit $?

10) Set permissions

  chgrp filter /opt/zimbra/postfix/conf/disclaimer
  chmod 750 /opt/zimbra/postfix/conf/disclaimer

11) Restart Zimbra postfix

  su - zimbra
  zmmtactl stop
  zmmtactl start

Good luck!
--
Daniel Eugenin M.
IT Linux Ltda.

Update: Adding a diferent disclaimer by domain

Only you must change:

8) Create an disclaimer file per domain and an empty file:

For example:

  mkdir /opt/zimbra/postfix/conf/disclaimers
  /opt/zimbra/postfix/conf/disclaimers/domain1.txt
  /opt/zimbra/postfix/conf/disclaimers/domain2.txt
 /opt/zimbra/postfix/conf/disclaimers/emptydisclaimer.txt

9) Create disclaimer script in /opt/zimbra/postfix/conf/disclaimer

!/bin/sh

 INSPECT_DIR=/var/spool/filter
 SENDMAIL=/opt/zimbra/postfix/sbin/sendmail
 LOCAL_DOMAIN1=domain1.com
 LOCAL_DOMAIN2=domain2.com
 RECIP=`echo $* | awk '{print $NF}'| tr [A-Z] [a-z]`
 RECIP_DOMAIN=`echo $RECIP | awk -F"@" '{print $2}'`
 SENDER=`echo $* | awk '{print $2}'| tr [A-Z] [a-z]`
 SEND_DOMAIN=`echo $SENDER | awk -F"@" '{print $2}'`
 # Exit codes from <sysexits.h>
 EX_TEMPFAIL=75
 EX_UNAVAILABLE=69

 # Clean up when done or when aborting.
 trap "rm -f in.$$" 0 1 2 3 15

 # Start processing.
 cd $INSPECT_DIR || { echo $INSPECT_DIR does not exist; exit $EX_TEMPFAIL; }

 cat > in.$$ || { echo Cannot save mail to file; exit $EX_TEMPFAIL; }

if [ "$RECIP_DOMAIN" = "$SEND_DOMAIN" ]; then /usr/bin/altermime --input=in.$$ \

                  --disclaimer=/opt/zimbra/postfix/conf/disclaimers/emptydisclaimer.txt \
                  --disclaimer-html=/opt/zimbra/postfix/conf/disclaimers/emptydisclaimer.txt  \
                  --xheader="X-Copyrighted-Material:" || \
                   { echo Message content rejected; exit $EX_UNAVAILABLE; }

elif [ "$SEND_DOMAIN" = "$LOCAL_DOMAIN2" ]; then /usr/bin/altermime --input=in.$$ \

                  --disclaimer=/opt/zimbra/postfix/conf/disclaimers/domain2.txt \
                  --disclaimer-html=/opt/zimbra/postfix/conf/disclaimers/domain2.txt \
                  --xheader="X-Copyrighted-Material: Please visit http://www.domain2.com/privacy.htm" || \
                   { echo Message content rejected; exit $EX_UNAVAILABLE; }

elif [ "$SEND_DOMAIN" = "$LOCAL_DOMAIN1" ]; then

/usr/bin/altermime --input=in.$$ \

                  --disclaimer=/opt/zimbra/postfix/conf/disclaimers/domain1.txt \
                  --disclaimer-html=/opt/zimbra/postfix/conf/disclaimers/domain1.txt \
                  --xheader="X-Copyrighted-Material: Please visit http://www.domain1.com/privacy.htm" || \
                   { echo Message content rejected; exit $EX_UNAVAILABLE; }

else

/usr/bin/altermime --input=in.$$ \

                  --disclaimer=/opt/zimbra/postfix/conf/disclaimers/emptydisclaimer.txt \
                  --disclaimer-html=/opt/zimbra/postfix/conf/disclaimers/emptydisclaimer.txt \
                  --xheader="X-Copyrighted-Material: " || \
                   { echo Message content rejected; exit $EX_UNAVAILABLE; }

$SENDMAIL "$@" <in.$$ exit $?

Addition by:
Rajesh Kodali,

--
Daniel Eugenin M.
IT Linux Ltda.

Verified Against:	Date Created: 10/1/2006
Article ID: http://wiki.zimbra.com/index.php?title=Adding_a_disclaimer_%28altermime%29_or_footer	Date Modified: 10/1/2009

Retrieved from "http://wiki.zimbra.com/index.php?title=Adding_a_disclaimer_%28altermime%29_or_footer"

Category: Customizing ZCS

Zimbra

Adding a disclaimer (altermime) or footer

From Zimbra :: Wiki

Altermime

Postfix

Update: Adding a diferent disclaimer by domain

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