After adding a custom domain, add the DKIM, SPF, DMARC, and MX records
Sentvia returned in your Route 53 hosted zone.
Open the hosted zone
AWS Console → Route 53 → Hosted zones → select the zone for your domain.
Add the DKIM records (CNAME ×3)
Create record → Record name = the *._domainkey… value (Route 53 shows the zone suffix
greyed out, so enter only the part before it), Type CNAME, Value = …dkim.amazonses.com.
Add SPF + DMARC (TXT)
Type TXT, with the value wrapped in double quotes, e.g. "v=spf1 include:amazonses.com ~all".
The _dmarc record likewise.
Add the MX records
Type MX, Value in the form 10 inbound-smtp.us-east-1.amazonaws.com (priority then host).
Prefer infrastructure-as-code? The same records map cleanly to
aws_route53_record resources in Terraform — one per record, ttl = 300.
POST /domains/{id}/verify. 
