Joke Collection Website - Blessing messages - How does the mobile phone prompt that the SMS was sent successfully, but the other party did not receive it?

How does the mobile phone prompt that the SMS was sent successfully, but the other party did not receive it?

Generally, there are the following reasons: (1) The other party has not opened the SMS receiving function; (2) The other party's mobile phone is turned off or out of service area; (3) The SMS storage space of the other party is full; (4) Maybe the other party's mobile phone is in the receiving queue and the system will choose to resend it. As long as it is in a normal state within 48 hours, this information can generally be received.