/etc/init.d/mailcatcher - MailCatcher init.d script for CentOS 6

mailcatcher.sh

#!/bin/bash
# chkconfig: 345 70 30
# description: MailCatcher is a simple SMTP server to catch and display mail
# processname: mailcatcher

# Source function library.
. /etc/init.d/functions

RETVAL=0
prog="/usr/local/rvm/wrappers/default/mailcatcher"
LOCKFILE=/var/lock/subsys/mailcatcher

# Declare variables for MailCatcher
USER=mailcatcher
HTTP_IP=0.0.0.0
HTTP_PORT=1080
SMTP_PORT=1025

start() {
        echo -n "Starting MailCatcher: "
        daemon --user $USER $prog --http-ip $HTTP_IP --http-port $HTTP_PORT --smtp-port $SMTP_PORT --no-quit
        RETVAL=$?
        echo
        [ $RETVAL -eq 0 ] && touch $LOCKFILE
        return $RETVAL
}

stop() {
        echo -n "Stopping MailCatcher: "
        killproc $prog
        RETVAL=$?
        echo
        [ $RETVAL -eq 0 ] && rm -f $LOCKFILE
        return $RETVAL
}

restart() {
        stop
        start
}

case "$1" in
    start)
        start
        ;;
    stop)
        stop
        ;;
    status)
        status mailcatcher
        RETVAL=$?
        ;;
    restart)
        stop
        start
        ;;
    *)
        echo "Usage: mailcatcher {start|stop|status|restart}"
        exit 1
        ;;
esac
exit $RETVAL

This script assumes that on CentOS 6 you have installed a later version of ruby using RVM:
gem install mailcatcher
gem install daemons