I sent some short messages by internet mail. Why did some recipients take a long time to receive it?

When sending short messages to the mobile terminals of China Mobile and China Unicom, the networks of China Mobile and China Unicom will limit the sending speed. This is because if the sending frequency is too high, China Mobile and China Unicom may blacklist the phone numbers of customers, and customers will no longer be able to send short messages normally, so the system controls the sending speed. In addition, the network is unstable, so customers can slow down the sending speed and reduce the number of numbers sent at a time. Customer service 53 answers for you. The traffic supermarket has a complete range of goods, and you can freely choose traffic packages, packages, voice packages and holiday traffic packages according to your needs; Reply to the keyword "flow supermarket" and you can handle it directly, which is convenient and fast.