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How to Troubleshoot Email Authentication Failures After a Domain Move

11/10/2026

A domain move can leave SPF, DKIM, or DMARC records at the former DNS provider or point them to obsolete senders.

Checks to make

Confirm authoritative DNS, inventory all approved sending sources, publish the correct records at the active authority, and verify selectors and alignment using controlled messages. Remove old entries only after confirming no legitimate service depends on them.

When to get help

DNS and email support can validate authentication records and sending paths. Informatix Systems can assess the symptoms, evidence, and next steps. Contact Informatix Systems to discuss this issue.