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

SavvisSavvis

Savvis Usage Statistics · Download List of All Websites using Savvis

Enterprise level hosting for media, government, financial, software and retailers. Now owned by CenturyLink.

US hosting