#!/bin/bash

# Greg MacLellan 12/16/2005

# Script for reporting how much mail domains are sending out
# http://gregmaclellan.com/php/
# Release notes: http://gregmaclellan.com/blog/sendmail-wrapper/

# Put this script in cron as, eg:
#     0 0 * * * /usr/local/sbin/mailreporting.sh delete 
# for daily reports, or
#     0 0 * * 0 /usr/local/sbin/mailreporting.sh delete 
# for weekly reports.
# You can also run it directly (without specifying delete) to get a count of the mail per-domain


# path to the mail directory
MAILPATH=/var/mail_log

# file to use as "compare" file
# When running in delete mode, the script will delete any
# mail log files older than this file, then set the date
# on this file to the current date. Default is to use $0 
# (this file)
TESTFILE=$0

# header to check for (grep)
HEADER="X-Generating-Domain"

if [ "$1" == "delete" ]; then
	find $MAILPATH -not -cnewer $TESTFILE | xargs rm
	touch $TESTFILE
	
	echo "Mail sent by doamins between "`date -r $TESTFILE  +%H:%M:%S\ %M\/%d\/%Y`" and "`date +%H:%M:%S\ %M\/%d\/%Y`
fi

	
grep "$HEADER" $MAILPATH/* | cut -f 2 -d\  | sort | uniq -c -d