Email trace APIs

The following email trace APIs are available:

Email trace request
POST https://<etp_instance_addr>/api/v1/messages/trace
Message trace information request
GET https://<etp_instance_addr>/api/v1/messages/<etp_message_id>
Original message ID request
GET https://<etp_instance_addr>/api/v1/messages?original_message_id=<original_message_id>
Downstream message ID request
GET https://<etp_instance_addr>/api/v1/messages?downstream_message_id=<downstream_message_id>
Message file request
GET https://<etp_instance_addr>/api/v1/messages/<etp_message_id>/email
Remediate messages request
POST https://<etp_instance_addr>/api/v1/messages/remediate