SPF, DKIM, DMARC are three DNS records that verify sender authenticity and protect against email spoofing (phishing, spam in your name).
SPF (Sender Policy Framework)
Specifies which servers can send mail from your domain.
Example TXT record:v=spf1 +a +mx +ip4:62.113.97.91 ~all
DKIM (DomainKeys Identified Mail)
Digital signature of each outgoing email. Recipient verifies via the public key in DNS.
Enabled in cPanel → Email Deliverability → Manage → Install Suggested Records.
DMARC (Domain-based Message Authentication)
Policy for handling emails failing SPF/DKIM. E.g. send to spam or reject.
Example TXT record:v=DMARC1; p=quarantine; rua=mailto:dmarc@example.tj
Setup at Navju Cloud:
- cPanel → “Email” section → Email Deliverability.
- Find your domain → Manage.
- If SPF / DKIM are not configured — the Install Suggested Records button will do everything automatically.
- Add DMARC manually via DNS Management in the client area.
After setup, test: send a message to check-auth@verifier.port25.com or use mxtoolbox.com/SuperTool.aspx.