I've been meaning to do this for the past decade...
#!/bin/bash
# autoreply 20150130 (C) Mark Constable <ma...@renta.net> (AGPL-3.0)
#
# A simple vacation autoreply script for courier-mta based mailservers.
#
# Depends on these conditions:
#
# - courier-imap/mta with courier-authdaemon and maildrop is installed
# - nano is installed (and "stat", part of the coreutils package)
# - the MAILDIR variable below is set to the root of your maildir folders
# - the users .mailfilter is not used for anything else
#
# Usage:
#
# autoreply - show simple usage text and exit
# autoreply fi - find all occurrences of autoreply.txt, and
status
# autoreply sh email@address - show the current autoreply.txt
# autoreply ed email@address - edit/create an autoreply for email@address
# autoreply en email@address - enable autoreply for user
# autoreply di email@address - disable autoreply for user
# autoreply rm email@address - completely remove users autoreply
#
#set -x
MAILDIRS=/home/u
test -z "$1" && echo "Usage: autoreply
sh(ow)|ed(it)|en(able)|di(sable)|rm(remove)|fi(indall) email@address" && exit 1
if [ "$1" = "fi" -a -z "$2" ]; then
echo "Please be patient while all users are checked..."
echo
while read -r AUTOREPLY
do
HDIR=$(dirname $AUTOREPLY)
if [ -f $HDIR/.mailfilter ]; then
ACTIVE="enabled"
elif [ -f $HDIR/mailfilter ]; then
ACTIVE="disabled"
else
ACTIVE="ERROR: mailfilter does not exist"
fi
echo $HDIR $ACTIVE
done < <(find $MAILDIRS -type f -name autoreply.txt)
exit 2
elif [ "$1" != "fi" -a -z "$2" ]; then
echo "Please provide an email address"
exit 2
fi
HOMEDIR=$(authtest $2 2>/dev/null | awk '/Home Directory:/ {print $3}')
if [ -z "$HOMEDIR" ]; then
echo "ERROR: No homedir for $2"
exit 2
fi
EMAIL=$2
show()
{
if [ -f $HOMEDIR/autoreply.txt ]; then
if [ -f $HOMEDIR/.mailfilter ]; then
echo "Autoreply currently: Enabled"
echo
grep ^SUBJECT $HOMEDIR/.mailfilter
elif [ -f $HOMEDIR/mailfilter ]; then
echo "Autoreply currently: Disabled"
echo
grep ^SUBJECT $HOMEDIR/mailfilter
else
echo "Error: missing mailfilter, remove and re-setup"
fi
echo
cat $HOMEDIR/autoreply.txt
else
echo "There is no autoreply for $EMAIL"
fi
}
edit()
{
if [ ! -f $HOMEDIR/autoreply.txt ]; then
cat << EOS > $HOMEDIR/mailfilter
MAILTO=escape(\$RECIPIENT)
MAILFROM=escape(\$SENDER)
SUBJECT="Auto responder for $EMAIL"
\`mailbot -t "./autoreply.txt" -d "./autoreply" -A "To: \$MAILFROM" -A "From:
\$MAILTO" -s "\$SUBJECT" -T forwardatt \$SENDMAIL -f "\$MAILTO"\`
EOS
echo "Type or paste the vacation autoreply text, ctrl-x to save and quit,
and then ENABLE the autoreply when ready"
echo
sleep 2
fi
nano -t -x -c $HOMEDIR/autoreply.txt
MUID=$(stat -c %u $HOMEDIR)
MGID=$(stat -c %g $HOMEDIR)
chown $MUID:$MGID $HOMEDIR/{autoreply.txt,mailfilter}
chmod 600 $HOMEDIR/{autoreply.txt,mailfilter}
}
enable()
{
if [ -f $HOMEDIR/.mailfilter ]; then
echo "Autoreply already enabled"
elif [ -f $HOMEDIR/mailfilter ]; then
mv $HOMEDIR/mailfilter $HOMEDIR/.mailfilter
echo "Autoreply now enabled"
else
echo "ERROR: mailfilter to activate autoreply does not exist, use EDIT to
create one"
fi
}
disable()
{
if [ -f $HOMEDIR/.mailfilter ]; then
mv $HOMEDIR/.mailfilter $HOMEDIR/mailfilter
echo "Autoreply now disabled"
elif [ -f $HOMEDIR/mailfilter ]; then
echo "Autoreply already disabled"
else
echo "ERROR: mailfilter to activate autoreply does not exist, use EDIT to
create one"
fi
}
remove()
{
if [ -f $HOMEDIR/.mailfilter ]; then
echo "Autoreply enabled, please disable first"
else
if [ -f $HOMEDIR/mailfilter ]; then
rm $HOMEDIR/mailfilter
echo "Removed $HOMEDIR/mailfilter (autoreply activation script)"
else
echo "Problem: no $HOMEDIR/mailfilter"
fi
if [ -f $HOMEDIR/autoreply.txt ]; then
rm $HOMEDIR/autoreply.*
echo "Removed $HOMEDIR/autoreply.txt (autoreply autoreply content)"
else
echo "Problem: no $HOMEDIR/autoreply.txt"
fi
fi
}
case $1 in
sh) show ;;
ed) edit ;;
en) enable ;;
di) disable ;;
rm) remove ;;
*) echo "Please provide one of sh, ed, en, di, rm, fi"
esac
echo "$(date +'%Y-%m-%d %X') $(whoami) $(basename $0) $*" >>
/var/log/history.log
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