| Name | Description | Type | Additional information |
|---|---|---|---|
| To |
The addresses the message is sent to. |
Collection of MessageAddress |
Required |
| Cc |
Addresses that should receive a carbon copy of the message. |
Collection of MessageAddress |
None |
| Subject |
The subject of the message. |
string |
Required |
| Body |
The message body. |
string |
None |
| RequestReadConfirmation |
Set when the recipients should send a read confirmation, false when empty. |
boolean |
None |
| RelatedMessageId |
Internal id of the related message. |
integer |
Required |