Email forwarding and aliases
33mail privacy rating
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.
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.
Score 9 out of 100. How scoring works
Criteria
- No
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No
No trackers or telemetry Weight 3 of 3
Are the website and apps free of third-party trackers, with any analytics anonymous and any telemetry off by default?
The website loads Google Analytics and the Facebook SDK.
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No
No ads or data sales Weight 2 of 3
Is the product funded without advertising, ad targeting or selling user data?
Short ads may be added to forwarded mail on the free plan. Paid plans remove them.
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No
Independent audit Weight 2 of 3
Has an independent security or privacy audit been published within the last three years?
No independent audit is published.
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Partial
Transparency report Weight 2 of 3
Does the provider regularly publish how many government and legal requests it receives and how it responds?
The terms state that data is shared with law enforcement when required, but no request counts are published.
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No
Tells users about requests Weight 1 of 3
Does the provider promise to tell users about requests for their data, unless a court forbids it?
No published policy on notifying users about data requests.
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No
End-to-end encryption Weight 2 of 3
Can mail be end-to-end encrypted so that the provider cannot read message contents?
Not supported. Forwarded mail is not encrypted end to end.
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No
No stored mail Weight 3 of 3
Is forwarded mail passed through without being written to disk?
No published information on whether forwarded mail is stored.
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No
Open protocols Weight 2 of 3
Can any standard app connect over IMAP, POP3, SMTP, CalDAV or CardDAV, without extra software?
No IMAP or SMTP access. Mail is forwarded to an existing inbox and replies go through anonymous reply addresses.
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Yes
Custom domains Weight 1 of 3
Can mail be sent and received with your own domain?
Available on the low-cost Premium plan and up.
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No
Sign up without personal data Weight 2 of 3
Can an account be created without a phone number or another email address?
An existing email address is required to receive forwarded mail.
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No
Sender Rewriting Scheme Weight 2 of 3
Is the envelope sender rewritten with SRS when mail is forwarded, so forwarded mail keeps passing SPF?
No published documentation on SRS for forwarded mail.
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No
ARC sealing Weight 1 of 3
Does the provider validate and add ARC (RFC 8617) signatures, so authentication results survive forwarding?
No published documentation on ARC signing or validation.
Automated tests
-
Partial
TLS configuration Weight 2 of 3
Does the website pass the Qualys SSL Labs test with a grade of A or better?
Grade A-
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No
Security headers Weight 1 of 3
Does the website pass the Mozilla HTTP Observatory test with a grade of A or better?
Grade F (0/100+)
-
Not tested yet
Modern web standards Weight 1 of 3
Does the website score 90% or higher on the Internet.nl website test?
Not tested yet.
-
Not tested yet
Email security standards Weight 2 of 3
Does the mail domain score 90% or higher on the Internet.nl email test?
Not tested yet.
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No
Mail transport security Weight 3 of 3
Does the mail domain enforce encrypted, authenticated delivery with MTA-STS, DANE, DNSSEC, TLS-RPT and an enforced DMARC policy?
Passes: SPF. Missing: DMARC missing, MTA-STS missing, TLS-RPT, DNSSEC, DANE none.
Email standards
- Yes: Mail serversMXaspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, aspmx2.googlemail.com, aspmx3.googlemail.com, aspmx4.googlemail.com, aspmx5.googlemail.com
- Yes: RFC 7208 sender policySPFpublished
- No: RFC 7489. Quarantine or reject counts as enforcedDMARCmissing
- No: RFC 8461 strict transport securityMTA-STSmissing
- No: RFC 8460 TLS failure reportsTLS-RPTmissing
- No: RFC 4033 signed DNSDNSSECnot validated
- No: RFC 7672 TLSA records on MX hostsDANEnone
- No: Brand logo record (not scored)BIMInone
- No: RFC 6186 and RFC 8314 service records (not scored)SRVnone
IMAP
Could not test: No server found (set a host in the rating file or publish RFC 6186 SRV records)
POP3
Could not test: No server found (set a host in the rating file or publish RFC 6186 SRV records)
SMTP submission
Could not test: No server found (set a host in the rating file or publish RFC 6186 SRV records)
Capabilities are what each server advertises before login. How these tests work