Email Hosting Providers

SPFSPF

SPF Usage Statistics · Download List of All Websites using SPF

The Sender Policy Framework is an open standard specifying a technical method to prevent sender address forgery.

Standard

Web Hosting Providers

ZayoZayo

Zayo Usage Statistics · Download List of All Websites using Zayo

Site hosted on range owned by Zayo, previously AboveNet which was previously Metromedia Fiber Networks which was previously SiteSmith.