mail not sending message

[Chris Evans <aaxiomfinity@gmail.com>]

I am having trouble getting mail to send the message I attach the script 
below



#!/bin/bash
wget http://digitalatoll.com/
rc=$?
if [[ $rc != 0 ]] ; then
    # number@txt.att.net
    SUBJECT="digitalatoll server down"
    # Email To ?
    EMAIL="9166126904@txt.att.net"
    # Email text/message
    EMAILMESSAGE="msg.txt"
    echo error on server! > msg.txt
    mail -s "$SUBJECT" -t "$EMAIL" < $EMAILMESSAGE
    rm msg.txt
fi
rm index.html