Looking for Geoff

I am urgently trying to find Geoff but it appears he has left Telstra: <gih@telstra.net>: host pit-mail.telstra.net[203.50.40.14] said: 550 5.1.1 <gih@telstra.net>... User unknown (in reply to RCPT TO command) Sorry for using the list but I don't know how else to find him. Please reply directly to me and not to the list. Thanks, Hank