Following up on my previous posts on Email Marketing Server and Domain Name Credibility, there is another interesting tool for anyone setting up a Mail server. Once you have setup your DNS and RDNS entries you may want to check that all your settings are correct and this site dnsreport.com is a great tool, it will help diagnose problems or possible problems.
The site checks for a whole list of settings like:
- Parent Zone: Making sure your domain zone was set properly (and exists eg: .co.uk)
- NS (Name Server) records and DNS security
- Single Point of Failure
- SOA (Start of Authority)
- MX Records and MX RDNS Record
- SPF Record
- WWW Record
It’s a great tool for anyone setting up a new mail server and also a great starting point for troubleshooting a malfunctioning mail domain.