{
  "slug": "33mail",
  "category": "email-forwarding",
  "name": "33mail",
  "description": "Email alias service that creates addresses on a personal 33mail.com subdomain or a custom domain and forwards mail to an existing inbox, with anonymous replies.",
  "website": "https://www.33mail.com",
  "license": null,
  "platforms": [],
  "jurisdiction": {
    "code": "IE",
    "name": "Ireland",
    "eyes": null,
    "eu": true,
    "gdpr": true,
    "cloud_act": null
  },
  "pick": false,
  "pick_reason": null,
  "disclosure": null,
  "grade": "F",
  "score": 9,
  "coverage": 100,
  "summary": "33mail scores 9 out of 100 (grade F) on the email forwarding and aliases criteria. It meets 1 of 16 criteria: custom domains. It partly meets transparency report and TLS configuration. It does not meet open source, no trackers or telemetry, no ads or data sales, independent audit, tells users about requests, security headers, end-to-end encryption, no stored mail, open protocols, sign up without personal data, mail transport security, Sender Rewriting Scheme and ARC sealing. It is based in Ireland: Not in the Five, Nine or Fourteen Eyes; EU member (GDPR). Automated tests: SSL Labs grade A- and Mozilla HTTP Observatory grade F.",
  "url": "https://privacyratings.com/email-forwarding/33mail/",
  "markdown": "https://privacyratings.com/email-forwarding/33mail/index.md",
  "answers": {
    "open_source": {
      "title": "Open source",
      "weight": 3,
      "answer": "no",
      "evidence": null,
      "note": "Closed source."
    },
    "no_trackers": {
      "title": "No trackers or telemetry",
      "weight": 3,
      "answer": "no",
      "evidence": "https://www.33mail.com",
      "note": "The website loads Google Analytics and the Facebook SDK."
    },
    "no_ads": {
      "title": "No ads or data sales",
      "weight": 2,
      "answer": "no",
      "evidence": "https://www.33mail.com/tos",
      "note": "Short ads may be added to forwarded mail on the free plan. Paid plans remove them."
    },
    "independent_audit": {
      "title": "Independent audit",
      "weight": 2,
      "answer": "no",
      "evidence": null,
      "note": "No independent audit is published."
    },
    "transparency_report": {
      "title": "Transparency report",
      "weight": 2,
      "answer": "partial",
      "evidence": "https://www.33mail.com/tos",
      "note": "The terms state that data is shared with law enforcement when required, but no request counts are published."
    },
    "user_notice": {
      "title": "Tells users about requests",
      "weight": 1,
      "answer": "no",
      "evidence": null,
      "note": "No published policy on notifying users about data requests."
    },
    "tls": {
      "title": "TLS configuration",
      "weight": 2,
      "answer": "partial",
      "evidence": "https://www.ssllabs.com/ssltest/analyze.html?d=www.33mail.com&hideResults=on",
      "note": "Grade A-"
    },
    "security_headers": {
      "title": "Security headers",
      "weight": 1,
      "answer": "no",
      "evidence": "https://developer.mozilla.org/en-US/observatory/analyze?host=www.33mail.com",
      "note": "Grade F (0/100+)"
    },
    "web_standards": {
      "title": "Modern web standards",
      "weight": 1,
      "answer": "pending",
      "evidence": null,
      "note": "Not tested yet."
    },
    "e2ee": {
      "title": "End-to-end encryption",
      "weight": 2,
      "answer": "no",
      "evidence": null,
      "note": "Not supported. Forwarded mail is not encrypted end to end."
    },
    "no_mail_storage": {
      "title": "No stored mail",
      "weight": 3,
      "answer": "no",
      "evidence": null,
      "note": "No published information on whether forwarded mail is stored."
    },
    "open_protocols": {
      "title": "Open protocols",
      "weight": 2,
      "answer": "no",
      "evidence": "https://www.33mail.com/faq",
      "note": "No IMAP or SMTP access. Mail is forwarded to an existing inbox and replies go through anonymous reply addresses."
    },
    "custom_domains": {
      "title": "Custom domains",
      "weight": 1,
      "answer": "yes",
      "evidence": "https://www.33mail.com/pricing",
      "note": "Available on the low-cost Premium plan and up."
    },
    "anonymous_signup": {
      "title": "Sign up without personal data",
      "weight": 2,
      "answer": "no",
      "evidence": null,
      "note": "An existing email address is required to receive forwarded mail."
    },
    "mail_standards": {
      "title": "Email security standards",
      "weight": 2,
      "answer": "pending",
      "evidence": null,
      "note": "Not tested yet."
    },
    "transport_security": {
      "title": "Mail transport security",
      "weight": 3,
      "answer": "no",
      "evidence": null,
      "note": "Passes: SPF. Missing: DMARC missing, MTA-STS missing, TLS-RPT, DNSSEC, DANE none."
    },
    "srs": {
      "title": "Sender Rewriting Scheme",
      "weight": 2,
      "answer": "no",
      "evidence": null,
      "note": "No published documentation on SRS for forwarded mail."
    },
    "arc": {
      "title": "ARC sealing",
      "weight": 1,
      "answer": "no",
      "evidence": null,
      "note": "No published documentation on ARC signing or validation."
    }
  },
  "tests": {
    "ssllabs": "A-",
    "observatory": "F",
    "internetnl_web": null,
    "internetnl_mail": null,
    "trackers": [
      {
        "name": "Cookiebot",
        "host": "consent.cookiebot.com",
        "effect": "none"
      },
      {
        "name": "Facebook SDK",
        "host": "connect.facebook.net",
        "effect": "no"
      },
      {
        "name": "Google Tag Manager",
        "host": "inline code",
        "effect": "no"
      },
      {
        "name": "Meta Pixel",
        "host": "www.facebook.com",
        "effect": "no"
      }
    ],
    "tested_at": "2026-10-01T11:00:23.260Z"
  },
  "last_modified": "2026-10-01T11:14:42Z"
}