The other party can't receive the free SMS sent by Yixin?

The receiver receives the user ID of Yixin toll-free telephone and telecommunication:118065+user ID (reply permanently). Mobile subscriber identification number: 106903355589+4-digit random code (valid after 24-hour reply); 1065752578 18+4-bit random code (valid within 24 hours); 10657 1205797+4-digit random code (valid within 24 hours). Unicom Unicom: 10655057740+ User id (reply permanently); 1065505774 18+ user id (reply permanently). Please confirm whether the sender has recently sent marketing advertisements or spam, which led to the system being blacked out; Whether the receiver has turned on the mobile phone interception software to intercept; Or blocked by the receiving operator. For more service offers, click on "official website" Customer Service 2 18 below to answer your questions.