Registrar guide

Adding a DKIM Record in Porkbun DNS

DKIM is a TXT at [selector]._domainkey. In Porkbun, put only the subdomain part in Host — not the full FQDN — unless your panel says otherwise.

Exact fields (example)

Type: TXT Host: google._domainkey Content: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8A... TTL: Auto / Automatic

If the UI shows the full hostname preview, you still usually type only google._domainkey — not your registrable domain twice.

Check DKIM after publish

See also: DKIM setup guide · DKIM glossary · Key length

Step 1 Copy the hostname and TXT value from your email provider (Google, Microsoft, SendGrid, etc.).

Step 2 Go to Account → Domain Management → your domain → DNS Records and click Add Record → TXT.

Step 3 Enter only the subdomain part in Host (e.g. google._domainkey). Porkbun usually appends your domain automatically.

Step 4 Paste the full Content/value including v=DKIM1 and the long p= string.

Step 5 Save. Wait a few minutes.

Step 6 Run DNS Preflight to confirm DKIM passes and key strength looks sane.

Usually just the subdomain portion for that selector — e.g. google._domainkey. Your provider’s doc is authoritative.

Most modern panels, including major registrars, handle long TXT. Paste the full p= value. If verification fails, re-paste without line breaks.

Yes — different selectors are different hostnames. They don’t conflict.

Providers poll on their schedule. If DNS answers look correct, give their checker time.

Some hosts use CNAME for DKIM alignment — follow your provider. This guide covers TXT publication.