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.

GoDaddy EmailGoDaddy Email

GoDaddy Email Usage Statistics · Download List of All Websites using GoDaddy Email

GoDaddy email provides a personalized address but protection against viruses and spam and includes tools like Calendar.

Web Hosting Provider Email

Operating Systems and Servers
Web Servers

nginxnginx

nginx Usage Statistics · Download List of All Websites using nginx

nginx [engine x] is a HTTP server and mail proxy server written by Igor Sysoev.