From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from lists.gentoo.org (pigeon.gentoo.org [208.92.234.80]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by finch.gentoo.org (Postfix) with ESMTPS id 376CB15808B for ; Tue, 13 Feb 2024 15:52:14 +0000 (UTC) Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id D3F93E2A08; Tue, 13 Feb 2024 15:52:05 +0000 (UTC) Received: from smarthost01a.sbp.mail.zen.net.uk (smarthost01a.sbp.mail.zen.net.uk [212.23.1.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (prime256v1) server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by pigeon.gentoo.org (Postfix) with ESMTPS id 5F924E29C2 for ; Tue, 13 Feb 2024 15:52:05 +0000 (UTC) Received: from [82.69.80.10] (helo=cube.localnet) by smarthost01a.sbp.mail.zen.net.uk with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.95) (envelope-from ) id 1rZv4m-001gOk-08 for gentoo-user@lists.gentoo.org; Tue, 13 Feb 2024 15:52:03 +0000 From: Peter Humphrey To: gentoo-user@lists.gentoo.org Subject: [gentoo-user] Help with local mail, please Date: Tue, 13 Feb 2024 15:52:03 +0000 Message-ID: <4880323.GXAFRqVoOG@cube> Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-user@lists.gentoo.org Reply-to: gentoo-user@lists.gentoo.org X-Auto-Response-Suppress: DR, RN, NRN, OOF, AutoReply MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" X-Originating-smarthost01a-IP: [82.69.80.10] Feedback-ID: 82.69.80.10 X-Archives-Salt: ec92f90a-8206-49f1-84d3-de2e7283c8f7 X-Archives-Hash: 5fb9d8c46c0c1cb2cfc6813995f20de1 Hello list, For years, I've been using postfix to accept mail from LAN hosts, and from the Internet via my ISP. This has never worked as I want it - it's just so complex to set up and understand. Well, it is for a bear of little brain like me. Can someone tell me how to make postfix accept all mail addressed to any host or user on the LAN - and not forward any mail to anywhere at all? It's running on a single-homed host on the LAN, and all other hosts are also single homed. Any of four hosts can originate mail, and I have fetchmail running on the same host to collect POP3 mail from my ISP. Dovecot serves IMAP4 to KMail clients on the LAN. At present, postfix is insisting on forwarding mail addressed to root on a LAN machine, but it's supposed to be acting on behalf of that machine. Two other hosts' mails never show up anywhere. Or perhaps there's a more suitable MTA out there? -- Regards, Peter.