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33Mail vs DuckDuckGo Email Protection: catalog facts
33Mail	DuckDuckGo Email Protection
Best for: Disposable email forwarder offering unlimited free aliases	Best for: Hiding your real address and stripping email trackers without changing inbox
Free Free for unlimited aliases on the 33mail subdomain.	Free Free Duck Address provided by DuckDuckGo.
Web	Web, Browser extension
Unlimited free aliases on the service's subdomain Simple to create a new alias on demand for any signup	Keeps your existing inbox and email provider Removes trackers from forwarded emails All 3 strengths for DuckDuckGo Email Protection Keeps your existing inbox and email provider Removes trackers from forwarded emails Free to use
Aliases live on 33mail's shared subdomain rather than a custom domain on the free tier Long-running service with a dated interface compared to newer alternatives	Relies on DuckDuckGo to forward all mail
Web application	Hosted service, Browser extension
Not open source	Not open source
License not stated	License not stated
Not stated if an account is needed	Account needed
Not stated if it works offline	Needs internet
Official website Full listing and sources Sources for 33Mail 33mail.com Catalog checked September 22, 2026	Official website Full listing and sources Sources for DuckDuckGo Email Protection duckduckgo.com/email Catalog checked September 23, 2026

“Not stated” means we have not confirmed it. Features can vary by device and plan.