Content-Disposition: attachment; filename="filename.ext"
Mime-Version: 1.0
Content-Type: text/plain
... rest of email ...

/usr/sbin/sendmail -t -iep < emailfilename

#!/usr/bin/ksh

if [ $# -lt 4 ] ; then
 echo "USAGE: send.email UNIXDIR UNIXFILE FROM@atsindustrial.com TO@ADDR.com"
exit 1
fi

UNIXPATH="$1"
UNIXFILE="$2"
FROMADDR="$3"
TOADDR="$4"

if [ -f "$UNIXPATH/$UNIXFILE" ] ; then
 OBJECT="$UNIXPATH/$UNIXFILE"
 cat "$OBJECT" | /usr/sbin/sendmail -oi -t -f $FROMADDR $TOADDR
else
 echo "$UNIXPATH/$UNIXFILE not valid..."
 exit 2
fi

exit 0