SPF Records for IVS-hosted Mail Service

Background

[Sender Policy Framework], or SPF, is a system that is designed to provide some level of check against the authenticity of an email. Essentially, it aims to assist mail servers in determining whether or not a particular email message was sent from an 'authorized source' on the Internet, so the server can reject forgeries. While the standard is still in "experimental" status, it offers a significant benefit to those using it today. Note that SPF does not protect your own email account from incoming spam, it does help to protect your domain from being blamed for spam forged to look like it came from you.