maile.uk

maile.uk is a free, open disposable email service built for developers. Every @maile.uk address is instantly available — no signup, no configuration, no waiting.

Quick start

Open any inbox by visiting:

https://maile.uk/box/<name>

Or call the API directly:

curl https://api.maile.uk/inbox/hello@maile.uk

Key features

Feature	Details
Instant inboxes	Any <name>@maile.uk is immediately usable — just visit the URL
No signup required	Zero accounts, zero tracking, zero cookies
Real-time delivery	New emails pushed to the browser via SSE — no polling
REST API	Full programmatic access for automation and testing
Webhooks	Browser-side (local) and server-side (remote) webhook delivery
Password protection	Lock an inbox with a time-limited password
Self-destruct	Schedule an inbox to auto-delete after N hours
Audio notifications	Optional chime on new email arrival
Recent mailboxes	Browser remembers your last 5 visited inboxes
Mobile-friendly	Responsive split-panel layout with back navigation on small screens

Architecture

Layer	Technology
Email reception	Cloudflare Email Routing → Worker
Storage	Cloudflare R2 (raw .eml + parsed HTML/text)
Metadata	Cloudflare D1 (SQLite)
API	Cloudflare Workers (Hono)
UI	TanStack Start + shadcn/ui + Tailwind CSS v4
Real-time	Server-Sent Events (SSE)
Cleanup	Cloudflare Cron (every 10 minutes)

Email lifecycle

• Emails are automatically deleted after 8 hours (configurable via admin settings)
• Unread emails are purged after 10 minutes to reduce noise
• Each inbox holds a maximum of 50 emails — oldest are removed first when the cap is reached
• Expired passwords are cleared automatically without deleting emails
• Self-destruct expiry deletes the entire inbox including all emails and settings

Important

maile.uk is public — any inbox is accessible to anyone who knows the address. Do not send secrets, passwords, or sensitive data.

All inboxes are shared globally. There is no private mode unless you use password protection.