From owner-freebsd-isp Thu Apr 23 18:05:03 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id SAA27586 for freebsd-isp-outgoing; Thu, 23 Apr 1998 18:05:03 -0700 (PDT) (envelope-from owner-freebsd-isp@FreeBSD.ORG) Received: from granite.sentex.net (granite.sentex.ca [199.212.134.1]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id SAA27581 for ; Thu, 23 Apr 1998 18:05:00 -0700 (PDT) (envelope-from mike@sentex.net) Received: from ospf-mdt.sentex.net (ospf-mdt.sentex.net [205.211.164.81]) by granite.sentex.net (8.8.6/8.6.9) with SMTP id VAA18304; Thu, 23 Apr 1998 21:01:37 -0400 (EDT) From: mike@sentex.net (Mike Tancsa) To: leifn@image.dk (Leif Neland) Cc: isp@FreeBSD.ORG Subject: Re: ETRN, fixed ip-adress (how to example) Date: Fri, 24 Apr 1998 00:51:01 GMT Message-ID: <353fde34.950646257@mail.sentex.net> References: In-Reply-To: X-Mailer: Forte Agent .99e/32.227 Sender: owner-freebsd-isp@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org On Thu, 23 Apr 1998 19:25:19 +0200 (CEST), in sentex.lists.freebsd.misc you wrote: >So I need a fixed ip-adress to use ETRN to allow our customers servers >pick up mail. > >Does this need to be a public ip-adress, or could this be a private ip >number like 10.0.0.2 ? > >The mail should be sent first to our server, which holds the MX for the >customers domain. > >How do I then arrange the delivery? > >I can't put the private ip adress in their official domain; should I have >a private dns-server too, listing secret domainnames? We do this here with our customers who have crappy MS Exchange and SLMail... (If only they knew UUCP... but thats another story.) We do the following. 1) Setup a the DNS for the customer's domain so that the MX records only point to our (the ISP) mailservers, eventually ending up at the one main mail server. e..g here is crappymsexchange.com (the domain names have been changed to protect the innocent :-)) -------------- IN NS ns.sentex.ca. IN NS ns2.sentex.ca. IN NS ns2.sentex.net. IN MX 10 granite.sentex.ca. IN MX 20 marble.sentex.ca. IN MX 30 granite-atm.sentex.ca. IN A 199.212.134.1 IN UINFO "Support - +1 519 651-3400" www IN A 199.212.134.1 ;nothing but regular entires except for this next one. exchange IN A 192.168.223.1 ------------- 20 and 30 just dump mail on granite.sentex.ca where it ends up in granite's mailqueue Then, in on granite, setup a sendmail rule to forward to the customer R$*< @ $* crappymsexchange . com . >$* $#smtp $@ exchange.crappymsexchange.com $: $1<@crappymsexchange.com>$3 You dont 'arrange' delievery.. Instead MSExchange (or SLMAIL), issues an ETRN crappymsexchange.com and sendmail dequeues the mail to exchange.crappymsexchange.com Here is an example RADIUS entry as well... Pexchuser Password = "UUCPISBETTER!!!" User-Service-Type = Framed-User, Framed-Protocol = PPP, Framed-Address = 192.168.224.1, Framed-Netmask = 255.255.255.255, Framed-Routing = None, Framed-Compression = Van-Jacobsen-TCP-IP, Framed-MTU = 1500, Idle-Timeout = 90 OSPF works quite well with gated to do dynamic routing... Also, you dont have to have an A and PTR entry for exchange.crappymsexchange.com you could just forward via IP address ---Mike To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-isp" in the body of the message