Send authenticated email (auth login) , using /dev/tcp

smtp.bash

#!/bin/bash

function run(){
	echo -e "\n[+] $smtp:$porta => $user:$pass"
	echo -e "[*] To: $rcpt | Message size: ${#send}"
	echo -e "[*] Subject: $subj\n"
	echo -e "Sending ..."
	exec 5<>/dev/tcp/$smtp/$port
	echo -e "EHLO $smtp" >&5
	echo "auth login" >&5
	echo -n "$user" | base64 >&5
	echo -n "$pass" | base64 >&5
	echo "MAIL FROM: $user" >&5
	echo "RCPT TO: $rcpt" >&5
	echo 'data' >&5
	echo "From:<$user>" >&5
	echo "Content-Type: text/html" >&5
	echo "To:<$rcpt>" >&5
	echo -e "Subject: $subj\n" >&5
	echo -e "$send\n.\nQUIT" >&5
	cat <&5
}

if [ $# != 7 ];then
	echo "{Send authenticated email (auth login)}"
	echo "Autor: MMxM | hc0der.blogspot.com"
	echo "How to use:"
	echo -e "\n\t$0 <smtp-server> <smtp-port> <user> <pass> <rcpt> <message.html> <subject>\n"
	exit
else
  smtp=$1
	port=$2
	user=$3
	pass=$4
	rcpt=$5
	send=$(cat $6)
	subj=$7
	run;
	exit
fi