NameDescriptionTypeAdditional 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.

Client

Optional: The Identity of the Client involved

Identity

None.