Joke Collection Website - Public benefit messages - On the Mid-Autumn Festival, I sent a mass message to my friends, but some of my friends didn't receive it. What happened?

On the Mid-Autumn Festival, I sent a mass message to my friends, but some of my friends didn't receive it. What happened?

Hello, the reasons why the individual numbers of the group SMS can't be received are: 1, the mobile phone number is not in the service area, which may cause packet loss 2, the local operator of the other party blocks 3, and the software on the mobile phone intercepts 4. It is normal that individual numbers are not received when the arrival rate is high.