About the email test
After you enter a domain name of an email service, we will test if the email service offers support for the modern Internet Standards below.
- IPv6: reachable via modern internet address?
- DNSSEC: domain names signed?
- DMARC, DKIM and SPF: authenticity marks against email phishing?
- STARTTLS: secure connection possible?
Note: some standards are even relevant if there are no mail servers configured for your domain.
After the test is finished, you are directed to a test report with detailed explanations. The report contains an overall percentage score and results per test section and per subtest. For more information see "Explanation of score and icons".
How to improve
You can use this test report to improve the mail service that you use. Usually contacting your mail hoster on this will be the best next step.
The e-mail test checks for important modern internet standards that contribute to reachability and security. It should not be considered as an all-encompassing security test for e-mail.