SPF

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.

Microsoft Exchange Online

Microsoft Exchange Online Usage Statistics · Download List of All Websites using Microsoft Exchange Online

A rich hosted Exchange environment for every user without having to manage a server.

Business Email Hosting

Office 365 Mail

Office 365 Mail Usage Statistics · Download List of All Websites using Office 365 Mail

Email sent from this domain has records showing Office 365 usage.

Business Email Hosting

Microsoft Azure DNS

Microsoft Azure DNS Usage Statistics · Download List of All Websites using Microsoft Azure DNS

This domain is verified with Microsoft Azure.

Google 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

World4You

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World4You provides PHP services and is based in Austria.

Austrian hosting

Hetzner

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German based dedicated and virtual hosting running on 100% green energy.

Dedicated Hosting · German hosting

Austrian Server Location

Austrian Server Location Usage Statistics · Download List of All Websites using Austrian Server Location

The web server is located in Austria.

Server Location

InterNetworX DNS

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

German based domain registration service.