Get Email Address

[Micale Raj]

Hi,

I want to get all the email address which has been registered in certain domain.
My requirement is to send a mail to a user when he/she entered his name. ( Consider
this in a environment where all the users are given email address in certain domain
- like company ). If I explain this further, this is like when we send mails using
email client like Thunderbird, it display all the email address.
Is this possible ?
how to do this ?

Thank you

[Rob Spoor]

It isn't possible, and that's a good thing. Imagine that some spammer just asks for all the users at some domain (like coderanch.com or google.com) - he then instantly has a large list of users to spam! Right now all he can do is guess which email addresses would be available; info@, root@, admin@ and webmaster@ are often used already.