Deliverability calculator
Complaint-to-spam-folder probability calculator
Estimate spam-folder pressure from complaint rate, trust scores, and recipient engagement.
Check this after every campaign that crosses your usual complaint baseline.
Enter your numbers
Citations
- [Google sender guidelines for bulk email 2026](https://support.google.com/a/answer/81126?hl=en)
- [Suped on Google 0.3% spam rate enforcement 2025](https://www.suped.com/learn/email-deliverability/how-does-google-penalize-senders-with-spam-rates-over-03)
- [GlockApps spam complaints guide 2025](https://glockapps.com/blog/definitive-guide-about-spam-complaints/)