FreeCustom.Email

About FreeCustom.Email

FreeCustom.Email is a temporary email service that generates disposable inbox addresses for receiving emails, verification codes, and sign-up links without using a personal address. It works without an account for guest users, who get 12-hour email storage; signing in with Google unlocks a free account tier with 24-hour storage, 1MB attachments, saved inboxes, and a custom email prefix. A Pro tier adds support for using a customer's own domain as a temporary email address, 5GB of permanent cloud storage, 25MB attachments, automatic OTP extraction, and full API access.

The service targets developers testing registration and OTP delivery flows, businesses running QA with staging environments, online shoppers avoiding marketing lists, and users accessing gated content without exposing a primary email address. It also offers a command-line interface for installation and an API for programmatic use, including described compatibility with AI agents and MCP.

Google Sign-In is used only to save inbox history and manage subscriptions, with no access to Gmail or contacts. The service describes itself as free and ad-free, with additional domains added regularly to reduce the likelihood of addresses being blocked by sign-up forms.

Key features

• Instant disposable email addresses with no signup or registration required
• Custom domain support for business use, e.g. @your-company.com
• Pro plan includes automatic OTP extraction and full API access
• Free Account offers 24-hour email storage, 1MB attachments, and saved inboxes
• Pro plan includes 5GB permanent cloud storage and 25MB attachments
• Ad-free interface with no pop-ups or trackers

Frequently asked questions