Common DNS Record Types: A, AAAA, CNAME, MX and TXT

TXT records publish verification and email-authentication policies. SPF, DKIM and DMARC serve different purposes and should be added exactly as supplied by the email provider.

What Each Record Does

SPF lists systems allowed to send mail for the domain.
DKIM publishes a public key used to verify signed messages.
DMARC tells receivers how to handle mail that fails alignment checks and where to send reports.

Add the Records

Confirm the domain uses NiceNIC nameservers.
Open My Products > Domain > DNS Records.
Add the TXT host and value supplied by the email provider.
For DKIM, use the selector host exactly as provided.
For DMARC, use _dmarc as the host unless the provider specifies another name.
Save the records and query them publicly.

Important SPF Rule

Publish one SPF policy per hostname. If multiple services send mail, combine their mechanisms into one record instead of creating several v=spf1 records.

Frequently Asked Questions

How do I know the change worked?

Check the current status in your NiceNIC account, then test the service that depends on the email-authentication records. Do not rely only on the absence of an error message.

When should I contact NiceNIC Support?

Submit a ticket when the required control is unavailable, the status remains pending after the checks in this guide, or the issue depends on an account-specific order or registry decision.

Related NiceNIC Guides

If the issue continues after you complete these checks, submit a NiceNIC support ticket. Include the affected domain or product, the exact error message, the time of the issue and the troubleshooting already completed.