Email Authentication
DNS lookup check
Before we can check anything about your email, your domain's DNS has to answer. This check says when it did not.
Check this on your own domain now. It is free with a DomainGuard account and works on any domain. The check reads only what your domain publishes, and gives you a report you can send to whoever runs your website.
What we look at
We query your domain's DNS for the records every other email check needs. This row appears only when those queries failed or timed out.
Why it matters to your business
If DNS does not answer us, it may not be answering your customers' mail servers either. That can mean a nameserver outage, a misconfigured zone, or a domain that has lapsed.
How to fix it
- Run the check again in a few minutes to rule out a passing outage.
- Confirm the nameservers listed at your registrar are the ones hosting your DNS zone.
- Check that the domain has not expired.
If you would rather not touch DNS or server settings yourself, forward this page and your report to whoever manages your website, or ask us to do it.
Check your own site for this
A free outside-in check of your website, email and domain records, with what to fix first. No card and no password to choose.
Keep an eye on it
A one-off check tells you how things stand today. On Starter and up, DomainGuard re-checks the domains it watches every day and alerts you in the app when something important changes, so you hear about it before a customer does.