After adding a custom domain, Sentvia gives you a set of DKIM, SPF,
DMARC, and MX records. Here’s how to add them in Cloudflare.
Open DNS settings
Cloudflare dashboard → select your domain → DNS → Records.
Add the DKIM records (CNAME ×3)
For each, Add record → Type CNAME, Name = the *._domainkey… value, Target =
…dkim.amazonses.com. Set Proxy status to DNS only (grey cloud) — mail records must not be
proxied.
Add SPF + DMARC (TXT)
Type TXT, Name and Content exactly as shown (e.g. v=spf1 include:amazonses.com ~all and
the _dmarc record). Cloudflare adds the quotes for you — don’t paste extra quotes.
Add the MX records
Type MX, Name as shown, Mail server = the …amazonaws.com / …amazonses.com target,
Priority 10.
Keep all of these DNS only (grey cloud). Proxying (orange cloud) breaks mail authentication
and routing.
POST /domains/{id}/verify to re-check now. 
