DMARCER
Sign in

Troubleshooting & FAQ

Common DNS mistakes

Most email-security problems come down to a handful of common DNS mistakes. This guide explains the ones we see most often, what each does to your mail, and how to put it right with your DNS provider.

29 Jun 2026 114

I added the records but it will not verify

If you have added the verification record but your domain still will not validate, it is almost always a small mismatch in the host name or value. This article explains what we check and walks you through fixing the most common slips.

29 Jun 2026 115

Why has my change not been picked up yet?

A new or edited DNS record is not always visible to the world the moment you save it. Here is how DMARCER keeps checking your domains, how to force a fresh check with Recheck now, and what to try if a change still has not shown up.

28 Jun 2026 100

Glossary of terms

A plain-language glossary of the email security terms you will come across in DMARCER, grouped so you can quickly find the one you need.

28 Jun 2026 117