curl --request POST \
  --url https://cloudapi.mailercloud.com/v1/domains \
  --header 'Authorization: <api-key>' \
  --header 'Content-Type: <content-type>' \
  --data '
{
  "domain": "example.com"
}
'

{
  "message": "The record of example.com successfully added to the ClouDns server, and domain created",
  "data": {
    "id": "zjAKXb",
    "domainName": "example.com",
    "addedMainDomain": "example.com",
    "domainDetails": [
      {
        "data": "track",
        "type": "CNAME",
        "name": "mc.example.com",
        "value": "mc3035n.mlrcloud.com",
        "show": 1
      },
      {
        "data": "dkim",
        "type": "CNAME",
        "name": "k1._domainkey.example.com",
        "value": "dkim.mlrcloud.com",
        "show": 1
      },
      {
        "data": "dkim2",
        "type": "CNAME",
        "name": "k2._domainkey.example.com",
        "value": "dkim2.mlrcloud.com",
        "show": 1
      },
      {
        "data": "img",
        "type": "CNAME",
        "name": "img3035n.example.com",
        "value": "img3035n.mlrcloud.com",
        "show": 1
      },
      {
        "data": "dmarc",
        "type": "TXT",
        "name": "_dmarc.example.com",
        "value": "v=DMARC1; p=reject; sp=none; adkim=s; aspf=s; rua=mailto:dmarc@mlrcloud.com; ruf=mailto:dmarc@mlrcloud.com;",
        "show": 1
      }
    ]
  }
}