Hi, I managed to add canoical rewritting, but now I am stuck with postfix trying to deliver the message to the canonical name and not to the proper Unix login name.
Using "sendmail -bv o...@cs.ait.ac.th" I get: --463023A3834.1248410743/mail2.cs.ait.ac.th Content-Description: Notification Content-Type: text/plain; charset=us-ascii This is the mail system at host mail2.cs.ait.ac.th. Enclosed is the mail delivery report that you requested. The mail system <olivier.nic...@cs.ait.ac.th> (expanded from <o...@cs.ait.ac.th>): delivery via local: unknown user: "olivier.nicole" --463023A3834.1248410743/mail2.cs.ait.ac.th Content-Description: Delivery report Content-Type: message/delivery-status Reporting-MTA: dns; mail2.cs.ait.ac.th X-Postfix-Queue-ID: 463023A3834 X-Postfix-Sender: rfc822; r...@cs.ait.ac.th Arrival-Date: Fri, 24 Jul 2009 11:45:43 +0700 (ICT) Final-Recipient: rfc822; olivier.nic...@cs.ait.ac.th Original-Recipient: rfc822; o...@cs.ait.ac.th Action: undeliverable Status: 5.1.1 Diagnostic-Code: X-Postfix; delivery via local: unknown user: "olivier.nicole" --463023A3834.1248410743/mail2.cs.ait.ac.th Content-Description: Message Headers Content-Type: text/rfc822-headers Return-Path: <r...@cs.ait.ac.th> Received: by mail2.cs.ait.ac.th (Postfix, from userid 0) id 463023A3834; Fri, 24 Jul 2009 11:45:43 +0700 (ICT) From: r...@cs.ait.ac.th Subject: probe To: olivier.nic...@cs.ait.ac.th Message-Id: <20090724044543.463023a3...@mail2.cs.ait.ac.th> Date: Fri, 24 Jul 2009 11:45:43 +0700 (ICT) --463023A3834.1248410743/mail2.cs.ait.ac.th-- Expansion from on@ into Olivier.Nicole@ is correct. How/where do I inform the LDA that it is to deliver to the Unix account associated to that canonical name Olivier.Nicole? Best regards, Olivier