Date: Sat, 10 Nov 2001 02:27:26 +0200 From: Giorgos Keramidas <charon@labs.gr> To: Steven Petmecky <petmecky@support.accessus.net> Cc: freebsd-questions@FreeBSD.ORG Subject: Re: How to Configure Sendmail 8.11+ for Backup MX Message-ID: <20011110002725.GA487@hades.hell.gr> In-Reply-To: <006901c16957$7a638be0$1eabcecf@accessus.net> References: <20011107132853.B7624@nubisci.net> <20011107231359.J301@blossom.cjclark.org> <20011109133729.A21217@nubisci.net> <006901c16957$7a638be0$1eabcecf@accessus.net>
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Steven Petmecky <petmecky@support.accessus.net> wrote: > Does anyone have a link to a good resource for building a sendmail 8.11 or 8.12 > mailserver, on FreeBSD 4.X, to serve as a purely backup MX for several domains? > > Also, information on using something like RBL or ORBZ to block spam, and > keeping the server from being an open-relay? > > I've looked over the FAQ's and documentation at sendmail.org, and did not find > anything specific to building a backup mailserver properly. Well, apart from configuring your DNS servers to have an MX pointer for the domain you want point to the Sendmail running machine, there's not much you need to set up. If your Sendmail server is not set up to reject mail for the domain in question, and the MX records are correctly configured, and you don't make the mistake of trying local delivery of the domain in question, you should be ready to fly :) So there are just two steps you need to take: a) Configure your name servers to have an MX record with larger priority that points to the secondary mail server. b) Make sure that your secondary Sendmail does not have in /etc/mail/local-host-names (or whatever you call it) the name of the domain that it's secondary MX for. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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