If the remote system has the finger service activated, that would work. However, most servers have stopped running this and also the user generally has a say in whether they want to be listed.
Out of curiosity, why do you want to do this? Mike Frazer "Bvr" <[EMAIL PROTECTED]> wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > > Yes, this is possible. > > However you would need to connect to the users mailserver instead of just the domain. > > Use getmxrr() to retrieve the mail exchanger associated with the domain. > > To check if the user is accepted on that server you can issue a RCPT TO: command > on it and see what happens. > > Also you can use a local SMTP server that supports the VRFY (verify) command to check > if the address is accepted. > > Google for 'RFC SMTP' for more details on the SMTP protocol. > > bvr. > > > On Wed, 6 Feb 2002 11:05:31 +0100, B. Verbeek wrote: > > >Question: > > > >Is it possible to validate an e-mailaddress by opening a socket-connection > >to the specified domein (@domain.com) and then search for username > >([EMAIL PROTECTED]) to validate an e-mailaddress? > > > >I know how to set up a socket-connection, but how do I search for the user > >in the given domain? > > > >Regards, > >bart > > > > > > > > > > > >-- > >PHP General Mailing List (http://www.php.net/) > >To unsubscribe, visit: http://www.php.net/unsub.php > > > > > > > -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
