Configuring DKIM and SPF records

SPF and DKIM prevent your emails from going to spam and protect against spoofing.

SPF (Sender Policy Framework)

Add a TXT record at your domain root:

For Google: v=spf1 include:_spf.google.com ~all

For Microsoft: v=spf1 include:spf.protection.outlook.com ~all

DKIM (DomainKeys Identified Mail)

Your email provider generates a DKIM key. Add it as a TXT record at the selector they specify (e.g. google._domainkey).

DMARC

Add a TXT record at _dmarc.yourdomain.com:

v=DMARC1; p=quarantine; rua=mailto:you@yourdomain.com

Start with p=none to monitor, then tighten to quarantine or reject once you confirm everything works.