nanog mailing list archives

Re: Email Server and DNS


From: Stefan Foerster <cite+nanog () incertum net>
Date: Mon, 4 Nov 2013 08:40:27 +0100

* Private Sender <nobody () snovc com>:
On 11/3/2013 8:39 AM, rwebb () ropeguru com wrote:
I am looking for some info on current practice for an email server 
and SMTP delivery. It has been a while since I have had to setup an
email server and I have been tasked with setting up a small one for
a friend. My question centers around the server sending outgoing
email and the current practices requirements for other servers to
accept email Things like rDNS, SPF records, etc...
[...]
MX, PTR, and SPF are really all you need. I would recommend you go a
step further and use DKIM, ADSP, and DMARC. It will help keep asshat
spammers from flaming your domain all over the internet.

And while you are at it - why not implement DNSSEC for the domain in
question and publish some DANE TLSA records?


Stefan

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