Abstract:
A device may determine that delivery of a message, to a destination identified by a telephone number shared by multiple user devices, has failed. The device may receive a unique identifier from a message delivery device associated with delivering the message. The unique identifier may correspond to a user device of the multiple user devices, and may be different from the telephone number. The device may determine whether the unique identifier indicates that the user device is able to receive the message, and may selectively provide the message to the message delivery device. The message may be provided to the message delivery device for delivery to the user device when the unique identifier indicates that the user device is able to receive the message. The message may not be provided to the message delivery device when the unique identifier indicates that the user device is unable to receive the message.