Script to redirect mail in a staging environment

trapmail.sh

#!/bin/sh
################################################################################
# Script to redirect mail in a staging environment
#
# Set this script to executable (chmod 755), and modify php.ini in the staging 
# environment to use this script instead of sendmail:
#
#   sendmail_path = /path/to/trapmail.sh
#
################################################################################
perl -pe 's/subject: ([^ ]*)/Subject: [Staging] \1/i' \
| formail -f \
  -R cc X-Original-Cc \
  -R to X-Original-To \
  -R bcc X-Original-Bcc \
  -A"To: <user1@example.org>, <user2@example.org>" \
| /usr/sbin/sendmail -t -i

just what i was looking for, thanks!