How do I configure SPF, DKIM, DMARC and MX?

Create the sender domain and follow its generated SMTP host, SPF, DKIM and DMARC plan. Inbound or bidirectional domains also receive an MX plan. Copy the records into your existing DNS provider, then use per-record validation or Validate All to check public DNS.

Do not replace unrelated TXT records or duplicate SPF policies. Publish production MX only after your receiving path has passed the applicable checks.

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