: Sending thousands of messages simultaneously can lead to carrier filtering. Professional GitHub scripts often include "sleep" timers or staggered sending to mimic human behavior and ensure delivery.

bulk-sms-express Uses express-rate-limit + twilio package to queue messages (avoid API flooding).

A working project will have a clear README.md with setup instructions, a list of dependencies (like Node.js, Python, or PHP), and an example .env file.