Why is it that after my text message was sent, the recipient’s name turned red and there was a red exclamation mark! What is the reason?

A red exclamation mark indicates that the message was not sent successfully. This may be due to the following reasons:

1. It is usually caused by unstable network or no network. . Just confirm that the network connection is normal and click Resend.

2. If there is any illegal content in the sent message, it will be blocked. Just change the wording or phrase and resend it.

3. The other party has set you up on the blacklist. The other party cannot receive the messages you send, and the other party needs to lift the blacklist restriction.