e-mail address mining tool?

["Hugo Vinicius Garcia Razera" <hviniciusg () gmail com>]

Hello list.

First off all congratulate every one for always sharing their knowledge for
free and for the... well lets get to the point :)
I'm wondering if any one knows a tool that can gather email addresses of the
users inside a domain, from the email server.

For example:

When u connect to a mail server trough telnet
And u enter the commands

Helo
Mail from: xxxx () something com
Rcpt to: xxxx () something com
Etc.....

U can see if the address xxxx () something com is a valid email.
I was thinking in something that uses like a dictionary off names and then
test all off them.

I was wondering if there is such tool so I don't have to reinvent the wheel.

I hope I make mi self clear. 

Best regards

Hugo Vinicius Garcia Razera
Security Consultant


------------------------------------------------------------------------------
Audit your website security with Acunetix Web Vulnerability Scanner: 

Hackers are concentrating their efforts on attacking applications on your 
website. Up to 75% of cyber attacks are launched on shopping carts, forms, 
login pages, dynamic content etc. Firewalls, SSL and locked-down servers are 
futile against web application hacking. Check your website for vulnerabilities 
to SQL injection, Cross site scripting and other web attacks before hackers do! 
Download Trial at:

http://www.securityfocus.com/sponsor/pen-test_050831
-------------------------------------------------------------------------------