{
"From": "sender@example.com",
"To": "receiver@example.com",
"Cc": "copied@example.com",
"Bcc": "blank-copied@example.com",
"Subject": "Test",
"Tag": "Invitation",
"HtmlBody": "<b>Hello</b>",
"TextBody": "Hello",
"ReplyTo": "reply@example.com",
"Headers": [
{
"Name": "CUSTOM-HEADER",
"Value": "value"
}
],
"TrackOpens": true
}