# Cloudflare adds email access restrictions to free Quick Tunnels

_Published Friday, October 2, 2026 at 9:10 AM EDT · Security, Infrastructure · Latest · Tier 2 — Notable_

![Cloudflare adds email access restrictions to free Quick Tunnels — Primary](https://blog.cloudflare.com/_emdash/api/media/file/01M3WF11EFDMBPVYJVR18D29GB.01M3WF120JP4JSCV3QW2JRCGQT.png)

Cloudflare says developers can now restrict access to Quick Tunnels by email address or domain starting with cloudflared 2026.9.3. The free service publishes a local application at a public URL without requiring a Cloudflare account; the new --allowed-mail flag limits who can open it.

Visitors verify their email with a one-time PIN through Cloudflare Access. The connector on the developer's machine checks that address against locally stored rules, keeping the guest list off Cloudflare's servers. Protection is optional: tunnels started without the flag remain public, and changing access rules requires restarting the tunnel.

## Sources

- [Posts tagged "Developers"](https://blog.cloudflare.com/protected-quick-tunnels/)

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Canonical: https://techandbusiness.org/newswire/8X2unhRsQ-nalaFpuKuEGq
Published: 2026-10-02T13:10:43.941Z
Story chronology: 2026-10-02T13:00:00.000Z
Retrieved: 2026-10-02T16:00:56.212Z
Publisher: Tech & Business (techandbusiness.org)