Hi guys hope you can help. I recently moved from shared to VPS all has gone well bar email, I thought it was fine but alas no. I created the setup with this tutorial http://ostechnix.wordpress.com/2013/...-step-by-step/ All I want is a single user account ME [email protected] to recive mail for that account and that only..maybe a catch all later I set it up as that tutorial, I can telnet to it no problems and ehlo ok. However when I send my self an email I get. [email protected] The e-mail address you entered couldn't be found. Please check the recipient's e-mail address and try to resend the message. If the problem continues, please contact your helpdesk. Diagnostic information for administrators: Generating server: techieserver.techieshelp.com [email protected] #< #5.1.1 X-Postfix; unknown user: "allen.white"> #SMTP# Original message headers: Return-Path: <[email protected]> Received: from out-11.mail.exa.net.uk (out-3.mail.exa.net.uk [82.219.4.131]) by techieserver.techieshelp.com (Postfix) with ESMTP id D056DEA08B2A for <[email protected]>; Thu, 16 May 2013 18:31:28 +0000 (GMT) Received: from smtp-4.mail.exa.net.uk (smtp-4.mail.exa.net.uk [82.219.5.4]) by out-11.mail.exa.net.uk (ExaSMTPD) with ESMTP id 84B43A0052 for <[email protected]>; Thu, 16 May 2013 19:31:30 +0100 (BST) Received: from mail.coniston.co.uk (unknown [82.219.27.29]) (using TLSv1 with cipher AES128-SHA (128/128 bits)) (No client certificate requested) by smtp-4.mail.exa.net.uk (ExaSMTPD) with ESMTPS id 6D6694005D for <[email protected]>; Thu, 16 May 2013 19:31:30 +0100 (BST) Received: from CONISTON-X.coniston-it.net ([fe80::c13c:eaed:4cd8:4e6a]) by CONISTON-X.coniston-it.net ([fe80::c13c:eaed:4cd8:4e6a%11]) with mapi id 14.01.0355.002; Thu, 16 May 2013 19:21:45 +0100 Im unsure of the following. In postfix the MYNETWORKS = confuses me I have entered LOCALHOST. Should I put the ip of my VPS? THe mail issue is it does not think the user is created. Hope someone can help! Many thanks Allen Edit/Delete Message