DUPLICATE	The mobile number or email address has already appeared in this campaign's recipient list
INVALID	The mobile number or email address was not in a valid format
UNSUBSCRIBE	The contacts subscription status is false
BLACKLIST	Contact has entered their mobile number or email address via the unsubscribe page in a previous campaign
ACCEPTED ENROUTE	Currently with the telco attempting to be delivered
UNDELIVERABLE	Telco reported an issue delivering to the number. Usually because the subscriber was not found i.e. number not found.
EXPIRED	Message was attempted to be delivered for 48hrs and did not succeed to be delivered to the handset. If a phone is off/not in service. Sometimes a phone may need to be restarted to register with the telco correctly.
DELIVERED	Message was delivered to the handset/mailbox
OPENED (Email Only)	Email was delivered and opened
BOUNCED (Email Only)	Email was rejected by mail server (due to: invalid sender address authentication, destination address doesn't exist, destination address mailbox is full)