Added new mx_lookup script

Author: NerdOfCode

Bash/mx_lookup.sh

@@ -0,0 +1,29 @@
+#!/bin/bash
+#Purpose: Look up MX records using a simple two step process
+
+#Colors for all warnings and errors
+RED='\033[0;31m'
+NONE='\033[0m'
+
+$(which dig >/dev/null 2>&1)
+
+if [ $? != 0 ]
+then
+	echo "Please install the 'dig' command"
+	exit 1
+fi
+
+read -p "Enter host domain: " host
+
+mx_target=$(dig +short MX $host | awk -F " " '{print $2}')
+
+ip=$(ping -c 1 $mx_target | awk -F " " '{print $5}' | sed 's/[^0-9.]*//g' | xargs)
+
+
+echo "MX record: $mx_target"
+
+if [ -z $ip ]
+then
+	printf "${RED}NOTE:${NONE} it is likely this IP blocks ICMP or ping requests\n"
+fi
+echo "IP: $ip"