How to Add SPF, DKIM & DMARC Records

Summary:
Boost your email delivery by adding key TXT records.

1. SPF

Add a TXT record like:

v=spf1 include:_spf.mailprovider.com ~all

2. DKIM

Your mail provider supplies a DKIM selector and public key. Add a TXT record, e.g.:

default._domainkey.yourdomain.com  TXT  "k=rsa; p=PUBLICKEY..."

3. DMARC

Add a TXT record for the _dmarc subdomain:

_dmarc.yourdomain.com  TXT  "v=DMARC1; p=none; rua=mailto:you@yourdomain.com"

Insert all records via cPanel Zone Editor or your DNS management tool, then save changes.