Create a free, secure temporary address with Mails.org to receive messages without signing up.
Mail.cx
Receive messages in a free temporary inbox with Mail.cx, which also offers a REST API.
About Mail.cx
Mail.cx generates disposable email addresses for receiving messages without using a real address. Users can choose a username or generate one randomly, and new mail is pushed to the browser as it arrives for uses such as signups, downloads, trials, and forum comments.
The free web inbox requires no signup and keeps mail for 1 hour, with contents deleted when the inbox expires. Receiving on a custom domain, 72-hour retention, and REST API access require Pro.
Key features
- Generate disposable address without signup
- Choose own username or generate one randomly
- Receive new mail in browser in real time
- Free inbox keeps mail for 1 hour
- Pro adds custom domains and 72-hour retention
- REST API for automated inbox polling with Pro
Best for: People who need a short-lived address for signups, trials, and downloads without exposing their real inbox.
Good for
- Free web inbox works without signup
- New mail is pushed to browser in real time
- States it does not log, sell, or share mail
Watch out for
- Free mail is kept for 1 hour only
- Custom domains and API access require Pro
- Inbox contents are deleted on expiry
Mail.cx at a glance
- Website
- mail.cx
- Category
- Privacy & Security › Private Email
- Type
- Website
- Pricing
- Not confirmed. Check the site
- Platforms
- Web
- Open source
- Not stated
- Language
- English
- Last checked
- Oct 5, 2026 · Online when checked
- Listed
- Oct 5, 2026
Mail.cx alternatives
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Mail.cx FAQ
What is a disposable temporary email?
A short-lived inbox you can use instead of your real address for signups, downloads, trials, and forum comments.
How long is mail kept?
Mail is kept for 1 hour in the free inbox and for 72 hours with Pro.
Do I need to sign up to use the free inbox?
No. The web inbox works without signup, and you can pick a username or generate one randomly.
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