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SPF lets receiving mail systems check whether a mail server is authorized to send on behalf of a domain.

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SPF records in Dugble

When you create a sending domain, Dugble returns the DNS verification records required by the configured email provider. SPF records appear in the domain’s records array with record set to SPF. A record includes the DNS name, value, type, verification status, and ttl. Some DNS records can also include a priority.

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Publish the returned record

Add the SPF-related record exactly as returned by Dugble. Do not guess or construct a provider-specific value yourself; the domain resource is the source of truth for the DNS values expected for that domain.
Your DNS provider may display SPF configuration as a TXT or MX-related record depending on the provider setup. Use the type, name, value, and optional priority returned by Dugble.

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Verify the domain

After publishing the DNS records, request a fresh verification check:
The returned domain shows the current verification state of each record.

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Avoid conflicting SPF configuration

A domain should not publish multiple conflicting SPF policies for the same hostname. If you already use other email services, review the existing DNS configuration before replacing or combining records.

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SPF and DMARC

SPF can participate in DMARC authentication when the authenticated domain aligns with the visible sender domain. See Domain Verification, DKIM, and DMARC for the complete domain authentication flow.