curl --location --request POST 'https://domain-open-api.getmx.com/v1/mail/create' \
--form 'token="token"' \
--form 'domain_id="12345678"' \
--form 'username="dev"' \
--form 'password="@1!2%345678"' \
--form 'mark="mark"'
{
"code": 0,
"msg": "string",
"data": {}
}