Get the processed message using id returned in response when message was submitted.
Client application must have 'app.conversation.notificationmgr.interaction.manage' or 'app.conversation.notificationmgr.interaction.read' scope assigned.
Get processed messages
Bad Request
Unauthorized
Not Found
Internal server error
{- "id": "9697487b-f41a-4097-91d2-80b0df61916a",
 - "messageId": "bb0dd8f7-7ac7-4b94-9bc5-02b8a8ed131a",
 - "from": "from@egain.com",
 - "recipient": "to@egain.com",
 - "subject": "Test email",
 - "inboundChannel": "REST",
 - "channel": "email",
 - "content": {
- "text": "Hello World",
 - "html": "<html>Hello World</html>"
 
}, - "status": "sent",
 - "requestId": "9697487b-f41a-4097-91d2-80b0df61916a",
 - "created": "2020-02-12T21:12:34.448Z",
 - "sent": "2020-02-12T21:13:20.517Z"
 
}