This is our SPF record for faves.com
"v=spf1 ip4:209.245.176.22 ip4:216.254.12.30 ~all"

Quoted: The Sender Policy Framework (SPF) is an open standard specifying a technical method to prevent sender address forgery. More precisely, the current version of SPF — called SPFv1 or SPF Classic — protects the envelope sender address, which is used for the delivery of messages. See the box on the right for a quick explanation of the different types of sender addresses in e-mails.

Some of our users were reporting problems receiving faves.com mails. I think I have now propertly updated our DNS settings per these instructions.

Quoted: How to configure DNS for correct validation of email services.

Good DNS overview/refresher

Quoted: The DNS is absolutely hierarchical and is thus always organised “top down” from the “root”.

I've been using this at home for the past few weeks, and I am happy. among other things, opendns a) warns of phishing attacks and b) corrects spelling mistakes on the fly (e.g. .cmo vs. .com). Great idea!

Quoted: OpenDNS provides a safer, faster and smarter DNS service that is free, with no software to install.

Quoted: Each time the DNS server "rotates" the order of the IP addresses in its responses, implementing the DNS "round-robin" load balancing (client applications usually use the first address in the DNS server response, and use other addresses only if an attempt to establish a TCP/IP connection with the first address fails).