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Disposable Email

and API

Email without signing up

Make up any email address @mailsac.com and you can instantly receive mail. No need to sign up!

Everything is public, unless you create an account.

About Mailsac

Email inbox service

Nearly all mail is accepted

Messages are regularly recycled

Trusted by Fortune 500 companies

Simple developer API

Host your own email for free with Mailsac

Point your DNS MX records to:

PriorityHostPoints to

Free email for your custom domain

APIs and Email Testing

Built for developers

REST API, webhooks, Slack support, web sockets, and of course SMTP/POP3

Used by large enterprises for automated testing

Fight back against tracking

It's cheap and easy to setup a unique email address per online service.

Route all your Mailsac addresses to a single one that you check.