In addition to buying SMS ports, how can we increase the delivery rate of SMS messages?

Blocking and blocking

Open Tencent Mobile Manager - Harassment Blocking - Calls or text messages, you can also select the blocking mode (such as black and white list) in the settings

Add all numbers from which text messages and calls have been sent to the blacklist. This will prevent these numbers from sending text messages or making phone calls again to harass users.

Secondly, set blocking keywords.

Set words that often appear in spam text messages as keywords, so that text messages with these contents will be intercepted by Tencent Mobile Manager.

Finally, you can "report" intercepted spam text messages and harassing calls, which can improve the accuracy of Tencent Mobile Manager's interception and make "smart interception" more reliable