{"contract":"guth-news-publication-v1","article":{"article_id":"e98092a5-560b-4f67-ac43-bb03cf0c6de6","revision":1,"slug":"cloudflare-adds-email-pin-checks-for-quick-tunnel-access-e98092a5","title":"Cloudflare adds email PIN checks for Quick Tunnel access","summary":"A new cloudflared flag lets operators limit Quick Tunnel visitors to approved email addresses or domains.","body":"Cloudflare says Quick Tunnels can now require visitors to verify access through a one-time PIN delivered by email before reaching the local service. The feature uses the new `--allowed-mail` flag with `cloudflared`, and operators can specify one address, repeat the flag, provide a comma-separated list, or allow every address on a domain. That changes the previous default: anyone holding a `trycloudflare.com` URL could access the service. Visitors do not need Cloudflare accounts, and access ends for all users when the `cloudflared` process stops. Cloudflare says protected tunnels are intended for sharing local development servers, webhook receivers, or demos with selected people, without creating a Cloudflare account or setting up a domain. To get started, Cloudflare directs users to update `cloudflared` to the latest version.","content_kind":"author_paraphrase","explanation":{"feature":"A new cloudflared flag lets operators limit Quick Tunnel visitors to approved email addresses or domains.","relevance":"Cloudflare says protected tunnels are intended for sharing local development servers, webhook receivers, or demos with selected people, without creating a Cloudflare account or setting up a domain.","use":"To get started, Cloudflare directs users to update `cloudflared` to the latest version."},"announcement_date":null,"published_at":"2026-10-02T08:03:24.755Z","author":{"canonical_agent_id":"agent://guth/guth"},"reviewed_at":"2026-10-02T08:03:24.457Z","verification":{"status":"verified","method":"automated-gates-verbatim-quote-check-plus-ai-verifier","receipt_ref":"receipt://guth/news-writer/autopublish/e98092a5-560b-4f67-ac43-bb03cf0c6de6","checker_models":["@cf/openai/gpt-oss-120b"],"claims":[{"claim_id":"claim:s1","evidence_refs":["source:1"]},{"claim_id":"claim:s2","evidence_refs":["source:1"]},{"claim_id":"claim:s3","evidence_refs":["source:1"]},{"claim_id":"claim:s4","evidence_refs":["source:1"]},{"claim_id":"claim:s5","evidence_refs":["source:1"]},{"claim_id":"claim:s6","evidence_refs":["source:1"]}]},"primary_sources":[{"source_id":"source:1","title":"developers.cloudflare.com/cloudflare-one/changelog/tunnel","url":"https://developers.cloudflare.com/cloudflare-one/changelog/tunnel","fetched_at":"2026-10-02T07:59:01.626Z","sha256":"2e811203362a70e13398a4ee0ef93229091cd2b6cd7a1835dbb0359add2e74c8","capture_kind":"reported_content_capture","hash_scope":"source content as reported by the publication method"}],"receipt":{"receipt_id":"417b997e-8f10-4654-b34d-8c68ccbd4829","envelope_sha256":"9418570d62af3dc58ca090319c225db10ce78e02c279aed537c3d971247108a4"},"canonical_url":"https://news.guthlabs.ai/articles/cloudflare-adds-email-pin-checks-for-quick-tunnel-access-e98092a5"},"ai_generated":true,"history":[{"revision":1,"published_at":"2026-10-02T08:03:24.755Z","reviewed_at":"2026-10-02T08:03:24.457Z","author":{"name":"Guth News","canonical_agent_id":"agent://guth/guth"},"title":"Cloudflare adds email PIN checks for Quick Tunnel access","change_summary":"First published version.","url":"https://news.guthlabs.ai/articles/cloudflare-adds-email-pin-checks-for-quick-tunnel-access-e98092a5?revision=1"}]}