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33Mail

33mail.com

From $1/mo Free plan Web
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Spec score 8.3 #9 of 23 in Email Alias Services

What it is

33Mail creates private email aliases and forwards messages sent to them to an existing email address. An alias is created automatically when email first arrives, and users can block an alias to stop receiving its messages. With anonymous replies enabled, users can reply to forwarded mail through 33Mail; the service removes header information relating to their actual email address. Premium accounts can use a custom domain by pointing its MX record to 33Mail. The service is web-based and also lists a browser extension. Lite is free and includes 10MB monthly bandwidth, with alias creation limited to five per 30-minute period. Premium costs $1 a month and includes 50MB monthly bandwidth, 20 anonymous replies per day, one custom domain, and one additional username. Pro costs $5 a month; Enterprise costs $50 a month. Attachments up to 10MB count toward bandwidth, which is measured over a rolling 30-day window. 33Mail says it warns users who exceed their bandwidth limit and treats dropping emails as a last resort. Its terms say user data is used to provide the service and is not shared with third parties except as needed for law enforcement requests. Brothers Ian and Andrew Clarke conceived the service, which forwarded its first email in August 2010.

Spec sheet

Support
The help page offers email support for feature requests and problem reports and directs users to send a direct message to @33mail on Twitter.Read 5 Oct 2026 · 33mail.com
Founded
2010Read 28 Sep 2026 · 33mail.com
Alias controls
Users can block an alias to stop receiving its email.Read 5 Oct 2026 · 33mail.com
Alias creation
Aliases are created automatically when an email is first sent to them.Read 5 Oct 2026 · 33mail.com
Anonymous replies
With anonymous replies activated, users can reply to forwarded mail through 33Mail, which removes header information relating to their actual email address.Read 5 Oct 2026 · 33mail.com
Attachments
Forwarded emails can include attachments up to 10MB, which count toward monthly bandwidth.Read 5 Oct 2026 · 33mail.com
Bandwidth window
Bandwidth limits are calculated over a rolling 30-day window.Read 5 Oct 2026 · 33mail.com
Creation limits
The FAQ states alias creation is limited to 5 per 30 minutes for Lite, 20 for Premium, and 50 for Pro.Read 5 Oct 2026 · 33mail.com
Custom domains
Premium accounts can use a custom domain by pointing its MX record to 33Mail.Read 5 Oct 2026 · 33mail.com
Data policy
The terms say 33Mail will not share user data with third parties except as necessary to comply with law enforcement requests, and will use it to provide the service.Read 5 Oct 2026 · 33mail.com
History and makers
The about page says brothers Ian and Andrew Clarke conceived 33Mail, which forwarded its first email in August 2010.Read 5 Oct 2026 · 33mail.com
Over-limit handling
33Mail says it will send a warning if a user exceeds the bandwidth limit and treats dropping emails as a last resort.Read 5 Oct 2026 · 33mail.com
Service
33Mail creates private email aliases and forwards their messages to an existing email address.Read 5 Oct 2026 · 33mail.com

Plans and prices

Lite Free 10MB monthly bandwidth · aliases limited to 5 per 30-minute period Read 5 Oct 2026 · 33mail.com
Premium $1 a month $1 per month 50MB monthly bandwidth · 20 anonymous replies/day · 1 custom domain · 1 additional username Read 5 Oct 2026 · 33mail.com
Pro $5 a month $5 per month 500MB monthly bandwidth · 100 anonymous replies/day · 5 custom domains · 5 additional usernames Read 5 Oct 2026 · 33mail.com
Enterprise $50 a month $50 per month 5GB monthly bandwidth · 1000 anonymous replies/day · unlimited custom domains · 25 additional usernames Read 5 Oct 2026 · 33mail.com

Every 33Mail plan and price →

Strong points and limits

Strong points

  • Aliases are created automatically when first emailed.
  • Users can block an alias.
  • Anonymous replies remove actual-address header information.
  • Premium supports a custom domain.
  • Bandwidth limits use a rolling 30-day window.

Limits

  • Lite includes 10MB monthly bandwidth.
  • Lite limits alias creation to five per 30 minutes.
  • Attachments up to 10MB count toward bandwidth.

Who it suits

33Mail suits people who want to give out separate email addresses while forwarding messages to an existing inbox. Its paid plans add custom-domain use and higher bandwidth and anonymous-reply allowances.

Verdict

33Mail provides aliases, forwarding, and a way to reply without exposing identifying header information. Compare plan bandwidth and alias-creation limits with how you expect to use it.

Where Specifiction places it

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