# Alternatives to 33mail

33mail is a long-running (since 2011) email aliasing service that generates unlimited disposable forwarding addresses to protect a user's real inbox, with anonymous reply and a Chrome extension. Custom domain support and priority processing are available on a low-cost paid tier.

33mail ranks #6 of 10 in Email alias services, with an Alt Score of 60. It is freemium from $1/mo and available on the web. 5 of 9 checklist rows are verified against a public source.

Source: https://altcatalog.com/alternatives/33mail/
Category: Email alias services

## Overview

- **Who it's for**: Individuals who want to give a distinct email alias to every website or service they sign up for, so they can trace which company leaked or sold their address and block that sender without exposing or changing their real inbox address.
- **What you get**: A free (Lite) tier that issues unlimited forwarding aliases at a personal 33mail.com subdomain with a 10MB monthly bandwidth cap and no custom domain or reply support, plus paid tiers (Premium $1/mo, Pro $5/mo, Enterprise $50/mo) that add custom domain support, higher bandwidth, anonymous reply-through, and additional usernames.
- **How it works**: A user signs up to get a subdomain like you.33mail.com, then makes up an alias such as companyname@you.33mail.com when a site requests an email address; 33mail automatically creates that alias and forwards mail sent to it to the user's real inbox the first time it receives a message, and the user can block any individual alias directly from the forwarded email.

## Profile

- **Pricing model**: Freemium (verified 2026-07-30)
- **Starts at**: $1/mo (verified 2026-07-30)
- **Platforms**: Web
- **Status**: active (verified 2026-07-30)

## Ranked alternatives

| # | App | Alt Score | Licence | Platforms |
|---|-----|-----------|---------|-----------|
| 1 | [SimpleLogin](https://altcatalog.com/alternatives/simplelogin.md) | 100 | AGPL-3.0 | Web, Browser extension, iOS, Android |
| 2 | [addy.io](https://altcatalog.com/alternatives/addyio.md) | 90 | AGPL-3.0 | Web, iOS, Android, Browser extension |
| 3 | [Forward Email](https://altcatalog.com/alternatives/forward-email.md) | 90 | BUSL-1.1 | Windows, macOS, Linux, iOS |
| 4 | [Firefox Relay](https://altcatalog.com/alternatives/firefox-relay.md) | 75 | MPL-2.0 | ? |
| 5 | [AliasVault](https://altcatalog.com/alternatives/aliasvault.md) | 60 | AGPL-3.0 | Windows, macOS, Linux, iOS |
| 6 | [ImprovMX](https://altcatalog.com/alternatives/improvmx.md) | 55 | Proprietary | Web |
| 7 | [Apple Hide My Email](https://altcatalog.com/alternatives/apple-hide-my-email.md) | 45 | Proprietary | iOS, macOS, Web |
| 8 | [DuckDuckGo Email Protection](https://altcatalog.com/alternatives/duckduckgo-email-protection.md) | 40 | Proprietary | Web, Browser extension, iOS, Android |
| 9 | [Burner Mail](https://altcatalog.com/alternatives/burnermail.md) | 30 | ? | Web, Browser extension |

Alt Score = Verified coverage (90%) + Visibility (10%). See https://altcatalog.com/how-alt-score-works/

## Feature comparison

Legend: Yes / No / Partial / ? (not verified).

| Email alias services checklist | 33mail | SimpleLogin | addy.io | Forward Email | Firefox Relay | AliasVault |
|---|---|---|---|---|---|---|
| Pricing model | Freemium | Freemium | Freemium | Freemium | Freemium | Freemium |
| Starts at | $1/mo | $36/year | ? | $3/mo | ? | Free |
| License | ? | AGPL-3.0 | AGPL-3.0 | BUSL-1.1 | MPL-2.0 | AGPL-3.0 |
| Platforms | Web | Web, Browser extension, iOS, Android | Web, iOS, Android, Browser extension | Windows, macOS, Linux, iOS, Android, Web | ? | Windows, macOS, Linux, iOS, Android, Web, Browser extension |
| Unlimited aliases (paid) | Yes | Yes | Yes | Yes | Yes | Partial |
| Custom domains | Yes | Yes | Yes | Yes | Yes | Partial |
| Reply from alias | Yes | Yes | Yes | Yes | Yes | No |
| Browser extension | ? | Yes | Yes | No | Yes | Yes |
| Self-hostable | ? | Yes | Yes | Yes | Partial | Yes |
| Open source | ? | Yes | Yes | Yes | Yes | Yes |
| PGP encryption | ? | Yes | ? | Yes | ? | No |
| Free tier limits | Yes | Yes | Yes | Yes | Yes | Yes |
| Catch-all support | Yes | Yes | Yes | Yes | ? | ? |

## Sources

Sources for 33mail. Each alternative is sourced on its own page.

- **Pricing model**: Freemium — <https://33mail.com/pricing> (verified 2026-07-30)
  - Note: Comparison table lists a free Lite tier plus three paid tiers: Premium $1/mo, Pro $5/mo, Enterprise $50/mo.
  - Quote: “FREE”
- **Starts at**: $1/mo — <https://33mail.com/pricing> (verified 2026-07-30)
  - Note: Cheapest paid tier is Premium.
  - Quote: “$1 per month”
- **Status**: active — <https://33mail.com/about> (verified 2026-07-30)
  - Quote: “Over 10 years later we're handling over 4 million emails per month.”
- **Platforms**: Web — <https://33mail.com/faq> (verified 2026-07-30)
  - Note: 33mail is a web dashboard / email-forwarding service; no native desktop or mobile app found.
  - Quote: “log in to your 33mail dashboard here : http://www.33mail.com/dashboard/account_info”
- **Unlimited aliases (paid)**: Yes — <https://33mail.com/faq> (verified 2026-07-30)
  - Note: Rate-limited to a small number of new aliases per 30 minutes depending on tier, but no cap on total aliases.
  - Quote: “You can create as many aliases as you like.”
- **Custom domains**: Yes — <https://33mail.com/faq> (verified 2026-07-30)
  - Note: Not available on the free Lite tier; 1 domain on Premium, 5 on Pro, unlimited on Enterprise per the pricing page.
  - Quote: “33mail premium lets you use your own domain instead of myusername.33mail.com.”
- **Reply from alias**: Yes — <https://33mail.com/faq> (verified 2026-07-30)
  - Quote: “Yes, if you have anonymous reply activated in your 33mail settings, you can just reply directly to mails received via 33mail and the reply will be routed through our servers, removing any header infor”
- **Free tier limits**: Yes — <https://33mail.com/faq> (verified 2026-07-30)
  - Note: Free (Lite) tier is also capped at 10MB monthly bandwidth (per pricing page table) and has no custom domains or anonymous reply.
  - Quote: “you can only create 5 per 30 minute period if you have a lite account”
- **Catch-all support**: Yes — <https://33mail.com/faq> (verified 2026-07-30)
  - Note: Any alias@yourname.33mail.com works automatically without pre-registration, functioning like a catch-all.
  - Quote: “Aliases are created automatically the first time an email is sent to them, so you can just make up an alias on the spot and use it when you sign up for a website, and it will be created the first time”

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Ranked by verified data, never by who paid. https://altcatalog.com/trust/