I was thinking about all the wasted emails to people who never reply so I made an inquiry on EMAILLOOKUP.com yesterday!
Basically you type in the eMail and it gives you the name and company and thumbs ups and thumbs downs every time they don't reply to someone! And LAST-REPLY-DATE as logged by the website.
You wouldn't be able to view companies email lists though, just the email you type in or the persons name to get their email.
Of course they never replied to the inquiry!
