Deliverability basics: SPF, DKIM, DMARC
The DNS records every sending domain needs.
- SPF lists the servers allowed to send for your domain (a TXT record starting with v=spf1).
- DKIM signs your emails cryptographically; enable it in your email provider and publish the TXT record it gives you.
- DMARC tells receivers what to do when SPF/DKIM fail; start with p=none and a reporting address, then tighten.
Deliverability → Domains checks these records for you. Beyond DNS: send relevant emails to verified addresses, keep volumes steady, honor unsubscribes instantly and watch bounce rates. No tool can guarantee inbox placement.
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