Send a short message to the super QQ mobile phone, prompting that the sending failed. What is the reason?

Hello, if the sending fails, it is usually caused by the following situations: 1, sensitive words: if pornography, gambling, violence, reaction, political and verbal personal attacks or special characters and symbols are involved. I suggest you use other words instead. 2. System delay: Due to the different network quality at different times and in different regions, it will directly affect the sending of short messages. If you find such a situation, please try again later. 3. Non-friends: the receiver is a friend of the sender, and the sender is not a friend of the receiver. In this case, it cannot be sent successfully. 4. Font/picture restrictions: For example, SMS is sent in the form of colored characters, QQ colors and custom pictures. Please use the default font to send. Tips: Please try not to send SMS with the same content repeatedly in a short time, otherwise it may also lead to "sending failure". If you can solve your problem, remember to choose "adopt as the answer" on our answer. Thank you very much for lifting a finger! Thank you. If you can't solve it, please continue to add your questions. Have a nice day!