| Name | Description | Type | Additional information | 
|---|---|---|---|
| DateToSend | Schedule the message to be sent on a given date and time. | date | None. | 
| DstPort | Send the message to a given port on a device. Used only in standard messages. | integer | None. | 
| EmailOptions | Settings for email messages. | EmailOptions | None. | 
| RecurringOptions | Settings for recurring messages. Used only in standard messages. | RecurringOptions | None. | 
| Reference | Set a reference for the message. | string | None. | 
| Repeat | Repeat options for the message. Used only in standard messages. | RepeatOptions | None. | 
| ResponseAlert | Determines how the user is notified when a recipient of the message replys. Used only in advanced messages. | Reply_Flags | None. | 
| ResponseLimit | Determines how many responses are allowed per recipient. Used only in advanced messages. | integer | None. | 
| Sender | Determines the header of the standard sms messages. | string | None. | 
| SecureMessage | If set, it will require the recipient to authenticate before viewing the message. Used only on the advanced message type. | boolean | None. | 
| SrcPort | Send a message to the device on a given source port. Used only in standard messages. | integer | None. | 
| DeliveryReceipt | Determines whether the sender will get notified on when each contact has the message delivered. | boolean | None. | 
| DeliverToValidatedOnly | [Depreciated no longer used] When set to true, the message will only be sent to validated contacts that appear in the addressbook (set to false if using quick recipients). | boolean | None. | 
| EmailReadReceipt | Determines whether the sender will get notified on when each contact has read the message | boolean | None. | 
| ExpiryDate | The expiration date of the message The format is the following:[YYYY-MM-DDTHH:MM:SSZ] | date | None. | 
| Reads | Number of reads a contact is allowed to view the message. | integer | None. | 
| SmsReadReceipt | Determines whether the sender will get notified on when each contact has read the message | boolean | None. |