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Your emails land in spam. People spoof your domain. You need SPF, DKIM, and DMARC. These DNS records protect your mail.
SPF lists servers allowed to send your mail. Receiving servers check this list. If the IP is missing, the mail fails.
- List your mail provider.
- List marketing tools.
- Start with ~all.
- End with -all.
DKIM signs your messages. It uses a private key to seal the email. A public key stays in your DNS. This proves the message did not change. Rotate keys often.
DMARC tells servers how to handle failed mail. It sends you reports.
- Set policy to p=none first.
- Read reports for weeks.
- Move to quarantine.
- Finish with reject.
Do it in this order: SPF, DKIM, then DMARC. This costs zero dollars. It takes some time.
Hire a managed IT provider if you hate DNS. They handle these tasks. They keep records current.
Your mail avoids spam folders. Your domain stays secure.