5 min readUpdated August 2026
SPF, DKIM & DMARC Setup Guide
Ensure your emails pass authentication checks and land in the primary inbox.
1. SPF (Sender Policy Framework)
Add a TXT record to your domain DNS specifying authorized mail servers (e.g. v=spf1 include:_spf.google.com ~all).
2. DKIM (DomainKeys Identified Mail)
Generate a cryptographic signature in your email host admin panel and add the corresponding TXT record.
3. DMARC (Domain-based Message Authentication)
Add a TXT record at _dmarc.yourdomain.com with value: v=DMARC1; p=none; rua=mailto:dmarc@yourdomain.com.