If the mobile phone newspaper is not distributed successfully, will the system save the distribution record and for how long?

The MMS center keeps the message for 12 hours, and if the message is not extracted within 12 hours, it will be discarded. The mobile phone newspaper platform does not make an appointment. If the user fails to extract the multimedia message 2 hours after the first sending, and the user successfully receives the push SMS (for example, the time period is 2 1: 00 to 12 hours after 8: 00 pm), the multimedia message center will send a push SMS to the user again (the second push SMS) to urge the user to extract the multimedia message, and the second push SMS will only be sent once. There is no alternative mechanism for mobile newspaper platform. (The above content is only applicable to Guangdong Unicom users)