From owner-freebsd-questions@FreeBSD.ORG Mon Nov 26 11:16:47 2007 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id E3AEB16A41B; Mon, 26 Nov 2007 11:16:47 +0000 (UTC) (envelope-from keramida@ceid.upatras.gr) Received: from igloo.linux.gr (igloo.linux.gr [62.1.205.36]) by mx1.freebsd.org (Postfix) with ESMTP id 601C913C46E; Mon, 26 Nov 2007 11:16:47 +0000 (UTC) (envelope-from keramida@ceid.upatras.gr) Received: from kobe.laptop (vader.bytemobile-rio.ondsl.gr [83.235.57.37]) (authenticated bits=128) by igloo.linux.gr (8.14.1/8.14.1/Debian-9) with ESMTP id lAQBG81b016990 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NOT); Mon, 26 Nov 2007 13:16:31 +0200 Received: from kobe.laptop (kobe.laptop [127.0.0.1]) by kobe.laptop (8.14.2/8.14.2) with ESMTP id lAQBG3FM002477; Mon, 26 Nov 2007 13:16:03 +0200 (EET) (envelope-from keramida@ceid.upatras.gr) Received: (from keramida@localhost) by kobe.laptop (8.14.2/8.14.2/Submit) id lAQBFxwk002476; Mon, 26 Nov 2007 13:15:59 +0200 (EET) (envelope-from keramida@ceid.upatras.gr) Date: Mon, 26 Nov 2007 13:15:59 +0200 From: Giorgos Keramidas To: "Aryeh M. Friedman" Message-ID: <20071126111559.GB2283@kobe.laptop> References: <474A577F.3090307@gmail.com> <20071126054636.GA5961@eos.sc1.parodius.com> <474A8B44.1010909@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <474A8B44.1010909@gmail.com> X-Hellug-MailScanner: Found to be clean X-Hellug-MailScanner-SpamCheck: not spam, SpamAssassin (not cached, score=-3.999, required 5, autolearn=not spam, ALL_TRUSTED -1.80, AWL 0.40, BAYES_00 -2.60) X-Hellug-MailScanner-From: keramida@ceid.upatras.gr X-Spam-Status: No Cc: Jeremy Chadwick , freebsd-questions@freebsd.org Subject: Re: Getting around ISP SMTP firewall settings (Re: Submitting a new port if send-pr is broken) X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 26 Nov 2007 11:16:48 -0000 On 2007-11-26 04:00, "Aryeh M. Friedman" wrote: >BTW I a redirected this to -questions >> You should be able to set up a local mailer/MTA (sendmail, postfix, >> etc.) and tell it to use your ISP's mail server on TCP port 25, and >> it all should just "magically work" unless they require SMTP AUTH >> (not many do from what I've seen; they base authentication on the >> source IP of customers). >> >> sendmail refers to this feature as SMART_HOST, while postfix refers >> to it as a transport destination (see transport(5)). > > I have not set the MTA up yet for it but I did test it with > thunderbird... an other question how can I set it up that I can > receive mail (dynamic IP and 25 inbound is blocked)? Thunderbird doesn't necessarily go through an SMTP connection to the local host, so it may work with or without a local MTA installation & setup (depending on which host you forward outgoing email). If you set up Thunderbird to use `localhost' for outgoing email, then you have to also configure a local MTA (Sendmail, Postfix, or qmail are popular choices). I don't think there's an easy way to set up the local Sendmail installation to *receive* email from the world without some sort of `static address' though. To do that, you would have to work with your ISP, so that: * Your address does not change semi-randomly or ramdonly. * Your fully qualified domain resolves correctly and its MX records point to your static IP address. * Your incoming port 25 traffic is not filtered.