Create email aliases that forward to an inbox with Emcognito, then reply privately or suspend an alias.
Free
24 alternatives33mail
33mail creates private email aliases that forward messages to an existing inbox and lets users deactivate addresses or reply anonymously.
About 33mail
33mail provides email aliases that forward to an existing inbox. Users receive a personal subdomain, such as you.33mail.com, and can make up an alias when a website asks for an address. Mail to the alias is forwarded to the existing inbox, the alias can be blocked if unwanted, and forwarded messages can be replied to anonymously. The site describes a basic option with a bandwidth limit, and a premium option with a subscription fee that allows a custom domain and higher daily bandwidth and reply limits.
Key features
- Create aliases on demand under a personal subdomain
- Forward mail sent to aliases to existing inbox
- Block an alias using a button in the email
- Reply anonymously to forwarded emails
- Use a custom domain with premium service
- Control which alias addresses remain active
Best for: People who want to use separate addresses for different websites without giving out their main inbox address.
Good for
- Basic service is described as free
- Aliases can be created whenever needed
- Unwanted aliases can be blocked and replies sent anonymously
Watch out for
- Basic service includes a bandwidth limit
- Daily bandwidth and reply limits apply
- Custom domain requires premium with subscription fee
33mail at a glance
- Website
- 33mail.com
- Category
- Privacy & Security › Private Email
- Type
- Website
- Pricing
- Not confirmed. Check the site
- Platforms
- Web
- Open source
- Not stated
- Last checked
- Oct 5, 2026 · Online when checked
- Listed
- Oct 5, 2026
33mail alternatives
Tools and sites you could use instead, ranked by how closely they match.
SimpleLogin offers open-source email aliases for receiving and sending messages anonymously, with protection against spam and phishing.
addy.io creates email aliases that forward to a real inbox, letting users use different addresses for services and disable one if it leaks.
Cloaked creates email and phone aliases plus passwords for signing up to services without sharing real contact information.
Alt Address provides free disposable email addresses, accepts mail across its domains, and keeps messages for three days without requiring registration.
48hr.email offers temporary inboxes with throwaway addresses, no registration, and automatic email deletion after 48 hours.
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33mail FAQ
How does 33mail work?
Sign up to get a personal domain like you.33mail.com, then make up an alias for a site. Mail to that alias is forwarded to your existing address, and you can block the alias later if you do not want its mail.
How much does 33mail cost?
The site describes basic service as free with a bandwidth limit, and premium service with a subscription fee for features such as a custom domain and higher daily bandwidth and reply limits.
Can I reply to mail forwarded by 33mail?
Yes, the site states you can reply anonymously to emails forwarded by 33mail.
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