What is SPF record? What do I need to do about it?

Due to the fact that a significant majority of SPAM comes from forged addresses, a new Sender Policy Framework (SPF) standard is being implemented by a number of ISPs and mail hosts, including several major providers (Hotmail, Yahoo, AOL, etc). Those providers have begun to require SPF to allow mail through their networks. Mail systems will need SPF records for their domains if they want their mail to be accepted by those providers.

In this tutorial, we will create a domain into djbdns server.
I assume you have install djbdns server and configure dnscache first before continue to this tutorial.

Please kindly to review how to install Djbdns and Deploy Dnscache Djbdns.

Install Djbdns Nameserver : http://wowtutorial.org/en/tutorial/44.html
Deploy Dnscache : http://wowtutorial.org/en/tutorial/45.html

This tutorial is a part of install Djbdns Name Server Unix/Linux, If you still don't have djbdns install on your server please kindly to install it first from this url

http://wowtutorial.org/en/tutorial/44.html

Djbdns is a DNS server which replaces BIND (aka named). It is secure,
significantly easier to manage, reliable, small, and fast.

Server Requirements
Here's a list of server and system requirements.
If you don't meet any one of these,
you'd better do something about it because the setup simply won't work without them.