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Step 3 of 7 · DMARC for a Small Domain

Google Workspace or Microsoft: generate the key

Google Workspace or Microsoft: generate the key — step 3 of 7 in DMARC for a Small Domain. Workspace: Apps → Gmail → Authenticate email → Generate new record. You get a DNS name like google._domainkey and a TXT value.

Copy from the product that sends. Paste into DNS. Wait for TTL.
Copy from the product that sends. Paste into DNS. Wait for TTL.

Free tech & internet tip: Google Workspace or Microsoft: generate the key (step 3 of 7 from "DMARC for a Small Domain").

Workspace: Apps → Gmail → Authenticate email → Generate new record. You get a DNS name like google._domainkey and a TXT value. Microsoft 365: Defender / Exchange DKIM — rotate and copy the CNAMEs they give you.

An ESP (Postmark, Mailgun, Mailchimp): their dashboard has DKIM / domain. Use THEIR selector. Do not reuse Google's key for Mailchimp.

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DMARC for a Small Domain

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