APLawrence.com -  Resources for Unix and Linux Systems, Bloggers and the self-employed

Maccy Xmas and hope you have some time off (procmail vacation by James Cetrangelo)

I happened to win an iPod in a contest and, not having any use for it myself, I decided to give it to a niece. She's only 8, so I'm pretty sure she doesn't read this site; I'm not giving away the surprise by mentioning it here..

Are you hoping for a Maccy Christmas? Hanukkah was early this year, so maybe you are already fondling that iPhone or MacBook Pro.. I hope so.

As for me, I'm planning on taking a few days off, and that is what leads me into the subject of something I wrote about some time ago: a smarter email vacation manager.

I never got around to that, but James Cetrangelo did - he created a procmail recipe that implemented the ideas. You can find it at http://www.blackfeathermedia.com/code/vacation_manager.php, and I've also listed it here for your admiration and enjoyment:


# PROCMAIL VACATION MANAGER 0.2b [Dec 20, 2007]
#
# Email-based vacation autoresponder system
#
#   Written by James Cetrangelo <[email protected]> (noob)
#   based on an idea from Tony Lawrence (http://aplawrence.com)
#
# This code is free to distribute, change, publish, or sell.  Just keep
# my name & email somewhere in the comments, and this paragraph intact.
# If you like it, hate it, or make improvements, please let me know.
# Use at your own risk.  I'm not responsible if your mail gets eaten.
#
# Check http://www.blackfeathermedia.com for updates.
#
# NOTES:
# Change variables on top to suit your system.  The recipies are not 100%
# portable since it uses 'test -e' to check for existance of files.  This
# can probably be optimized and cleaned up by someone with more experience.
# Needless to say, it's not for fellow noobs.  You should know what you're
# doing before you let my rogue code near your email.  It could also use a 
# more substantial spam filter to prevent autoreplies to address farmers.
# I know some of my shell calls can be optomised to use internal procmail
# functions.  A good resource: http://pm-doc.sourceforge.net/pm-tips.html
#
# INSTALLATION:
#   - Change variables at top to match your system settings
#   - Rename to .procmailrc and add to your home directory
#   - Do NOT create 'vacation_message.txt' or header files
#       (required files will be created or deleted when needed)
# 
# USAGE:
#   - Send an email to yourself with 'Vacation On' in the subject.  The body
#       of this message will become your outgoing message.
#   - The system will save that message to local files, and email you back
#       with a random verification code.
#   - Reply to that confirmation message to enable the vacation autoresponder.
#   - Any incoming email will recieve your outgoing message as a reply.
#       This should exclude obvious spam (if Spam-Asassin is running) and
#       repeat messages (one reply per email address)
#   - Disable the autoresponder by sending an email to yourself with 
#       'Vacation Off' in the subject line.  It can also be disabled by
#       simply deleting the 'vacation_*.txt' files created.

USERNAME=$LOGNAME
USEREMAIL="[email protected]"
HOMEDIR=/home/$USERNAME
LOGFILE=/dev/null
SHELL=/bin/sh

VACMESSAGE=$HOMEDIR/vacation_message.txt
VACHEADER=$HOMEDIR/vacation_header.txt
VACCODE=$HOMEDIR/.vacationcode
VACCACHE=$HOMEDIR/vacation.cache

# Leave unused alias names below set to $USERNAME.
# set it to "sales" or "support" when these are forwarded to you
ALIAS1=$USERNAME
ALIAS2=$USERNAME
ALIAS3=$USERNAME


# When user sends an email to themselves with 'vacation on' in the subject,
# their new outgoing message is temporarily stored, and a verification code
# is sent in a confirmation email.  Outgoing messages can be any mime type.
:0 
* $ ^From.*$\USEREMAIL
* H ?? ^Subject:.*Vacation On
* $ !^X-Loop: $\USEREMAIL
{
  CODE= `date | md5sum`
  CODE= `expr substr "$CODE" 3 10`
   

  :0 hcW: vacheader.lock
  | formail -X Content-type | cat > $VACHEADER.tmp

  :0 bcW: vacmessage.lock
  | cat > $VACMESSAGE.tmp
  
  :0 cWi: vaccode.lock
  | echo "$CODE" > $VACCODE

  :0
  | (formail -r -I"From: $USEREMAIL" -A"X-Loop: $USEREMAIL"
  -I"Subject: Vacation Autoresponder Message Recieved"; \
    echo -e "This is an automatic message from your vacation autoresponder: \n" \
            "\nYour new outgoing message has been saved.  To enable vacation mode," \
            "simply reply to this message.  The code below is used to verify" \
            "your email address.  Vacation mode wont be enabled until you reply. \n" \
            "\nVerification Code: $CODE\n") | $SENDMAIL -oi -t
}


# When the user replies to the above confirmation email containing the code,
# Vacation mode is enabled: Filenames changed, and a cofirmation message is sent
:0
* $ ^From.*$\USEREMAIL
*   ^Subject:.*Vacation Autoresponder Message Recieved
* B ?? ^Verification Code: \/.+
* $ !^X-Loop: $\USEREMAIL
* $ ? test -e $VACCODE
* $ ? test -e $VACMESSAGE.tmp
* $ ? test -e $VACHEADER.tmp
{ 
  TESTCODE=$MATCH
  CODE= `cat $VACCODE`

  :0
  * $ TESTCODE ?? $CODE
  {
    :0 ci: vacmessage.lock
    | rm $VACCODE; mv ${VACMESSAGE}.tmp $VACMESSAGE; mv ${VACHEADER}.tmp $VACHEADER

    :0 a
    | (formail -r -I"From: $USEREMAIL" -A"X-Loop: $USEREMAIL"
    -I"Subject: Vacation Autoresponder Enabled"; \
      echo -e "This is an automatic message from your vacation autoresponder: \n" \
              "\nVacation mode is now enabled.  All incoming email will automatically" \
              "recieve your outgoing reply.  To turn off the vacation autoresponder," \
              "simply reply to this message, or send yourself an email with 'Vacation Off'" \
              "in the subject line.") | $SENDMAIL -oi -t
  }
}


# If the user replies to the above message, or sends an email to themselves
# with "Vacation Off" in the subject line, then vacation mode is disabled.
# Outgoing message is deleted, and a confirmation message is sent.
:0
* $ ^From.*$\USEREMAIL
* ^Subject:.*Vacation (Off|Autoresponder Enabled)
* $ !^X-Loop: $\USEREMAIL
{
  :0 ci: vaccache.lock
  * $ ? test -e $VACCACHE
  | rm $VACCACHE

  :0 ci: vacmessage.lock
  | rm $VACHEADER; rm $VACMESSAGE

  :0 a
  | (formail -r -I"From: $USEREMAIL" -A"X-Loop: $USEREMAIL"
  -I"Subject: Vacation Autoresponder Disabled"; \
    echo -e "This is an automatic message from your vacation autoresponder: \n" \
            "\nVacation mode is now off.  Incoming emails will no longer" \
            "recieve your vacation message.") | $SENDMAIL -oi -t
}


# If the vacation message and header files exist, vacation mode is on.
# Any incoming mail gets checked against a list.  New email addresses are
# added to the list, and the outgoing message is sent to them.  If Spam-Asassin
# is installed, the most obvious spam will be excluded (but not filtered).
:0 Whc: vaccache.lock
* $ ^To:.*\<($\USERNAME|$\ALIAS1|$\ALIAS2|$\ALIAS3)\>
*  !^FROM_DAEMON
*  !^X-Spam-Flag:.*YES
* $!^X-Loop: $\USEREMAIL
* $ ? test -e $VACHEADER
* $ ? test -e $VACMESSAGE
#   ^Subject:.*Vacation Test
| formail -rD 8192 $VACCACHE

:0 ehc
| formail -r -I"From: $USEREMAIL" -A"X-Loop: $USEREMAIL" | cat -
$VACHEADER | tr -s '\n' | cat - $VACMESSAGE | $SENDMAIL -oi -t

Nice job, James! Thank you for sharing!



Got something to add? Send me email.





(OLDER)    <- More Stuff -> (NEWER)    (NEWEST)   

Printer Friendly Version

-> -> Maccy Xmas and hope you have some time off (procmail vacation)




Increase ad revenue 50-250% with Ezoic


More Articles by

Find me on Google+

© Anthony Lawrence



Kerio Connect Mailserver

Kerio Samepage

Kerio Control Firewall

Have you tried Searching this site?

Unix/Linux/Mac OS X support by phone, email or on-site: Support Rates

This is a Unix/Linux resource website. It contains technical articles about Unix, Linux and general computing related subjects, opinion, news, help files, how-to's, tutorials and more.

Contact us





Always do right. This will gratify some people, and astonish the rest. (Mark Twain)

I've noticed lately that the paranoid fear of computers becoming intelligent and taking over the world has almost entirely disappeared from the common culture. Near as I can tell, this coincides with the release of MS-DOS. (Larry DeLuca)












This post tagged: