In the world of SaaS and online services, sign-up quality is everything. Unfortunately, it’s easier than ever for bad actors—or even regular users—to abuse your system by signing up with temporary or disposable email addresses.
The Problem: Disposable Emails Undermine Trust & Cost You Money
Disposable email services like Mailinator, 10MinuteMail, and Guerrilla Mail let users create throwaway inboxes in seconds. These addresses are often used to:
- Bypass free trial limits
- Flood your system with fake accounts
- Skew analytics
- Exploit promotions or referral programs
They clutter your database, waste your resources, and introduce risk.
Imagine giving out free credits to 100 “users”, only to realize 90 of them never had real inboxes to begin with.
How Guardient Solves It
Guardient’s Email Integrity Check is purpose-built to stop this abuse before it starts.
100K+ Disposable Domains — We maintain a constantly updated list of known disposable and temporary email domains.
Real-Time Lookups — When a user tries to register, we instantly check their email address against our dataset.
Signal-Based Scoring — You decide how much impact a disposable email has on the final trust score using Guardient’s weighted preferences.
API-First Design — Plug Guardient into your sign-up flow in minutes and start filtering immediately.
Comparison: Guardient vs Regex or Manual Filters
| Feature | Regex/Manual Lists | Guardient |
|---|---|---|
| Up-to-date Disposable Domains | ❌ Manual | Automatic, Daily |
| Scoring System with Weighting | ❌ No scoring | ✅ Full control |
| Integration Speed | ⚠️ Depends | ✅ Fast via API |
| Accuracy | ⚠️ High false negatives | ✅ Highly accurate |
Take Back Control of Your Sign-Ups
Every fake sign-up is a risk. Guardient gives you the tools to spot them before they enter your ecosystem. By eliminating disposable emails at the gate, you improve security, reduce costs, and protect the integrity of your user base.