1. Carrier Filtering (The "Smishing" Flag) Carriers (Verizon, T-Mobile, Airtel, Vodafone) use AI to detect "bulk behavior." If your GitHub script sends 100 identical messages in 2 seconds from one SIM, the carrier will block your SIM or mark all messages as spam.
2. API Rate Limiting
Twilio allows 1 message per second. Plivo allows 10. If you use a naive for loop, you will hit 429 Too Many Requests in three seconds.
3. Dependency Decay
The repo was made in 2019. It uses requests version 2.20, but your Python is 3.11. The selenium webdriver API changed.
Security is paramount. You should never hardcode your API keys directly into your Python script. Instead, use GitHub Secrets. bulk+smssender+github+work
Bulk SMS is heavily regulated. In the US, the TCPA requires prior express consent and an opt-out mechanism (e.g., "Reply STOP"). In the EU, GDPR mandates lawful processing of phone numbers. Using GitHub workflows does not exempt you from these rules. Sending unsolicited bulk SMS can lead to fines of $500–$1,500 per message. Always maintain a double-opt-in list and include clear opt-out instructions in every message.
Create a recipients.csv with one column: phone (International format: +1234567890).
Never blast 10,000 messages on the first run. building Docker images
python sender.py --test --limit 5
Check delivery logs. If all 5 arrive, increase limit.
Here are well-structured, working examples (as of 2025):
Go to your repo → Settings → Secrets and variables → Actions
Add: or deploying code. However
You might typically associate GitHub Actions with CI/CD pipelines—running tests, building Docker images, or deploying code. However, GitHub Actions is also a powerful tool for general automation.
Here is why it works perfectly for a Bulk SMS Sender: