John te Bokkel / Tempus: > I am not sure why this is happening now, I haven't made any changes to > configurations in the last while.
The Postfix local delivery agent will report a loop when it tries to deliver mail to u...@example.com, and that message already has a "Delivered-To: u...@example.com" message header. You can disable ADDING the Delivered-To header, but you cannot disable TESTING for the header's presence. Wietse > > Here is an example of an email that got bounced. It was sent locally > in a backup script. > > > > >From MAILER-DAEMON Fri Oct 16 12:31:13 2009 > Return-Path: <> > X-Original-To: j...@localhost.powercoreeng.com > Delivered-To: j...@localhost.powercoreeng.com > Received: by server (Postfix, from userid 1013) > id 56D23272C9A; Fri, 16 Oct 2009 12:31:13 -0400 (EDT) > X-Spam-Checker-Version: SpamAssassin 3.2.1-gr1 (2007-05-02) on server > X-Spam-Level: > X-Spam-Status: No, score=-2.6 required=5.0 tests=BAYES_00,NO_RELAYS > autolearn=ham version=3.2.1-gr1 > Received: from localhost (localhost [127.0.0.1]) > by server (Postfix) with ESMTP id ECB5B272C95 > for <j...@localhost>; Fri, 16 Oct 2009 12:31:12 -0400 (EDT) > X-Original-To: r...@powercoreeng.com > Delivered-To: r...@powercoreeng.com > Received: from localhost [127.0.0.1] > by localhost with IMAP (fetchmail-6.3.11) > for <j...@localhost> (single-drop); Fri, 16 Oct 2009 12:31:12 -0400 > (EDT) > Received: by server (Postfix) > id D761F272C97; Fri, 16 Oct 2009 12:26:12 -0400 (EDT) > Date: Fri, 16 Oct 2009 12:26:12 -0400 (EDT) > From: mailer-dae...@powercoreeng.com (Mail Delivery System) > Subject: Undelivered Mail Returned to Sender > To: r...@powercoreeng.com > Auto-Submitted: auto-replied > MIME-Version: 1.0 > Content-Type: multipart/report; report-type=delivery-status; > boundary="C9994272C9A.1255710372/server" > Message-Id: <20091016162612.d761f272...@server> > > This is a MIME-encapsulated message. > > --C9994272C9A.1255710372/server > Content-Description: Notification > Content-Type: text/plain; charset=us-ascii > > This is the mail system at host server. > > I'm sorry to have to inform you that your message could not > be delivered to one or more recipients. It's attached below. > > For further assistance, please send mail to postmaster. > > If you do so, please include this problem report. You can > delete your own text from the attached returned message. > > The mail system > > <j...@localhost.powercoreeng.com>: mail forwarding loop for > j...@localhost.powercoreeng.com > > --C9994272C9A.1255710372/server > Content-Description: Delivery report > Content-Type: message/delivery-status > > Reporting-MTA: dns; server > X-Postfix-Queue-ID: C9994272C9A > X-Postfix-Sender: rfc822; r...@powercoreeng.com > Arrival-Date: Fri, 16 Oct 2009 12:26:12 -0400 (EDT) > > Final-Recipient: rfc822; j...@localhost.powercoreeng.com > Action: failed > Status: 5.4.6 > Diagnostic-Code: X-Postfix; mail forwarding loop for > j...@localhost.powercoreeng.com > > --C9994272C9A.1255710372/server > Content-Description: Undelivered Message > Content-Type: message/rfc822 > > Received: by server (Postfix, from userid 1013) > id C9994272C9A; Fri, 16 Oct 2009 12:26:12 -0400 (EDT) > X-Spam-Checker-Version: SpamAssassin 3.2.1-gr1 (2007-05-02) on server > X-Spam-Level: > X-Spam-Status: No, score=-2.6 required=5.0 tests=AWL,BAYES_00,NO_RELAYS > autolearn=unavailable version=3.2.1-gr1 > Received: from localhost (localhost [127.0.0.1]) > by server (Postfix) with ESMTP id A1EC1272C95 > for <j...@localhost>; Fri, 16 Oct 2009 12:26:12 -0400 (EDT) > X-Original-To: j...@localhost.powercoreeng.com > Delivered-To: j...@localhost.powercoreeng.com > Received: from localhost [127.0.0.1] > by localhost with IMAP (fetchmail-6.3.11) > for <j...@localhost> (single-drop); Fri, 16 Oct 2009 12:26:12 -0400 > (EDT) > Received: by server (Postfix, from userid 1013) > id 0B09D272C9C; Fri, 16 Oct 2009 12:21:13 -0400 (EDT) > Received: from localhost (localhost [127.0.0.1]) > by server (Postfix) with ESMTP id 4A7E8272C97 > for <j...@localhost>; Fri, 16 Oct 2009 12:21:12 -0400 (EDT) > X-Original-To: r...@localhost > Delivered-To: r...@localhost.powercoreeng.com > Received: from localhost [127.0.0.1] > by localhost with IMAP > >