VVVNOORDLIMBURG.NL

Postmark

Postmark Usage Statistics · Download List of All Websites using Postmark

Email delivery for web apps.

Transactional Email

MailChannels

MailChannels Usage Statistics · Download List of All Websites using MailChannels

A hosted email relay service with outbound spam filtering features.

Transactional Email

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 Azure DNS

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

This domain is verified with Microsoft Azure.

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 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

DMARC

DMARC Usage Statistics · Download List of All Websites using DMARC

A technical specification created by a group of organizations that want to help reduce the potential for email-based abuse

DMARC

Digital Ocean

Digital Ocean Usage Statistics · Download List of All Websites using Digital Ocean

SSD VPS hosting environment.

US hosting · VPS Hosting

DNSSEC

DNSSEC Usage Statistics · Download List of All Websites using DNSSEC

DNSSEC strengthens DNS authentication by using digital signatures based on public key cryptography.

nginx

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.