Inbound message filtering: blacklist plus flood protection

The scenario normalises the sender's number, checks it against a blacklist in your spreadsheet and caps how many messages a minute it will accept. Only clean traffic passes through.

  • The blacklist lives in an ordinary spreadsheet
  • Numbers are compared in normalised form — formatting tricks don't help spammers
  • The rate limit smothers message floods
  • Only clean traffic reaches your processing
Set it up for yourselfMade with Scriptera