What happened when the message was sent out and the recipient was gray?

A gray recipient indicates that the message was not successfully sent to the recipient's mobile phone. This may be due to the following reasons:

1. Network connection problem: If your mobile phone signal is unstable or the network connection is not smooth, the short message may not be sent to the recipient's mobile phone in time, so the recipient is grayed out. You can try to switch to a more stable network environment, or wait until the network returns to normal before sending text messages.

2. The recipient's mobile phone is turned off or out of service area: if the recipient's mobile phone is turned off or in service area where no signal is received, the message cannot be delivered and the recipient is grayed out. In this case, you can try sending the SMS again later, or confirm the status and location of the mobile phone with the receiver.

3. Network operator problem: Sometimes, it may be that a specific network operator has a delay or other problems, which makes it impossible to send SMS normally. This may be a temporary problem. You can wait a while, and then try sending SMS again, or contact your network operator for a solution.

It should be noted that there may be other reasons for the failure of sending SMS, such as that the SMS contains sensitive words or the storage space of the recipient's mobile phone is full. If the problem persists, it is recommended that you contact your network operator or technical support department for further assistance.

Extended content: With the continuous development of science and technology, the frequency of people using short messages may gradually decrease and be replaced by instant messaging applications, such as WhatsApp and WeChat. These applications provide a more stable and convenient communication mode and support information transmission in various media forms. Therefore, if you encounter problems with texting, you can consider trying to use these more advanced communication tools.