Questions, answered.

A disposable address that works like a normal one, receiving mail, attachments and verification codes, but lives for a short time so spam never reaches your real inbox. Think of it as a shield between your personal identity and the internet's appetite for email addresses.

Each inbox stays alive for 24 hours and you can extend it up to 7 days with one click. Emails you receive are kept while the inbox is alive, then permanently deleted. Removal is immediate and unrecoverable.

No. MailU is receive-only. That keeps the service fast, free and out of spammers' hands, and it protects the domain's reputation so your mail keeps arriving.

Yes. The free tier covers everything you see here: unlimited inboxes, custom addresses, attachments and the full 7-day extension. Small ads keep the lights on.

Yes. Click "Custom address" above the inbox, type the name you want and check availability in real time. Names are 3 to 30 characters: lowercase letters, numbers, dots, dashes and underscores.

Your messages exist only to be delivered to your browser. They're stored encrypted at rest on our infrastructure, never shared with anyone, and destroyed on expiry or manual deletion.

Please don't. Disposable addresses are meant for one-time interactions. If you register an important account with a MailU address, you'll lose access to it when the inbox expires and there is no way to recover it.

A small number of senders block disposable email domains outright. The address is working; the sender just refuses to deliver. Try a different sender or a different service. Delivery on the internet is always best-effort.

Yes. The site is fully responsive and installable as a web app. Your inbox session also syncs between devices with the QR code on the home page.

Not publicly yet. The site itself runs on a small JSON API, and a public developer API is on the roadmap as usage grows.