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

Google Apps for BusinessGoogle Apps for Business

Google Apps for Business Usage Statistics · Download List of All Websites using Google Apps for Business

Web-based email, calendar, and documents for teams. Renamed to Google Apps for Work, but now known as G Suite From Google Cloud.

Business Email Hosting

Name Server

HostEurope DNSHostEurope DNS

HostEurope DNS Usage Statistics · Download List of All Websites using HostEurope DNS

DNS and managed hosting services provider encompassing webfusion, 123-reg and heart internet.