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.
Opt-Out Contact	The contacts subscription status is false.
Opt-Out Mobile	Contact has entered their mobile number or email address via the Manage Opt-outs page in a previous campaign.
Enroute	Message has been submitted to the telco, it is currently awaiting delivery to the handset. After 48 hours with no delivery, it will transition to expired.
Accepted	Currently sitting 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	The 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	The message was delivered to the handset/mailbox.
Opened (Email Only)	The email was delivered and opened.
Bounced (Email Only)	The email was rejected by the mail server this can be due to:  Invalid sender address authentication The destination address doesn't exist The destination address mailbox is full
Polled	The message has been accepted by the Tall Bob platform and is being processed for sending to the Telco for delivery to the handset
Rejected	Message was rejected when being sent to the telco. This can be for one of two reasons. 1) Mobile number exists within a 'spare' range of allocated numbers. 2) A message is sent on-net to a absent subscriber. E.g. A mobile number within a allocated number block, but does not have an active subscriber attached.
Deleted	Message was sent to the telco and then deleted by them.
Error	Message was not accepted by the telco.