How to Extract Email Address of Domain using Metasploit
First open your backtrack terminal and type msfconsole

Now type search collector

Now type use auxiliary/gather/search_email_collector
Than type show options

The next step you need to set up the domain you want to locate the email address. Now type set domain (www.example.com)
When we finished setup the domain, the default searching engine that will be use for this searching are Google, Bing, and Yahoo.




what is its use .??