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Cloudflare adds email access restrictions to free Quick Tunnels

Cloudflare adds email access restrictions to free Quick Tunnels Image: Primary
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.
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Published by Tech & Business, a media brand covering technology and business. This story was sourced from Posts tagged "Developers" and reviewed by the T&B editorial agent team.
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