class Email
{
public int Id { get; set; }
public string Body { get; set; }
[Required]
public List<EmailAddress> Addresses { get; set}
}
class EmailAddress
{
public int Id { get; set; }
[Required]
[EmailAddress]
public string Address { get; set; }
}
{
"body": "blah blah",
"addresses" : ["qwe@qwe.qwe", "rty@rty.rty"]
}