# IsTempMail

> Detect and block disposable, temporary, and fake email addresses to fight spam, fraud, and free trial abuse.

- Website: https://istempmail.com
- Listed on: [Toolfio](https://toolfio.com/item/istempmail)
- Published: 2026/04/29

## About IsTempMail

IsTempMail is a service that detects and blocks disposable, temporary, and fake email addresses in real-time. It helps businesses reduce spam, prevent fraudulent registrations, and stop free trial abuse. The service is available via a simple JSON API and a free WordPress plugin.

**Key Features**
- **Huge Database**: Over 124,000 known disposable email domains are maintained and continuously updated.
- **Simple JSON API**: A single endpoint accepts an email or domain and returns a JSON response indicating whether it is blocked or unresolvable.
- **WordPress Plugin**: A free plugin allows WordPress site owners to block temporary emails with just a few clicks.
- **API Libraries**: Official libraries for JavaScript (npm) and PHP are available to speed up integration.
- **Real-Time Updates**: New disposable email providers are added daily, with 5-20 new domains added per day.
- **Fair Pricing**: A free plan with 200 API requests per month is available, with paid plans starting at $5/month for 5,000 requests.

**Use Cases**
- **SaaS Companies**: Prevent free trial abuse by blocking users who sign up with temporary email addresses.
- **E-commerce Sites**: Reduce fake registrations and spam accounts that could lead to fraudulent orders.
- **Community Platforms**: Ensure that only genuine users with real email addresses can join and participate.

**What Makes It Stand Out**
IsTempMail offers a large, actively maintained database of disposable email domains, a developer-friendly API with official libraries, and a free WordPress plugin for easy integration. Its pricing is transparent and affordable, with a free tier available.

**Summary**
IsTempMail provides a reliable, easy-to-integrate solution for blocking disposable email addresses, helping businesses protect their platforms from spam, fraud, and abuse.

## Categories

- [Developer Tools](https://toolfio.com/category/developer-tools)
- [Security](https://toolfio.com/category/security)
- [Email Marketing](https://toolfio.com/category/email-marketing)
- [Automation](https://toolfio.com/category/automation)

## Tags

API, WordPress Plugin, For Developers, Email

## Links

- X (Twitter): https://twitter.com/istempmail