Why Use Disposable Email?
Every time you sign up for a newsletter, download a PDF, create an account on a new service, or enter a contest, you trade your email address for access. That address is then used for marketing, sold to data brokers, and eventually exposed in a data breach. Your primary inbox becomes a spam-filled mess tied to your identity across dozens or hundreds of services.
Disposable email addresses solve this problem. You create a temporary address, use it for the sign-up, receive the confirmation, and discard it — keeping your real inbox clean and your identity compartmentalized.
There are two distinct types: truly disposable/anonymous addresses (no account required, used once) and alias-based services (tied to an account, persistent but hideable). Both have their place.
Truly Disposable Services (No Account Required)
Guerrilla Mail
guerrillamail.com is one of the oldest and most reliable disposable email services. It generates a random address instantly with no registration, and keeps messages for 1 hour. You can compose outgoing messages (unusual for this category) and read attachments.
Key features:
- Randomized address or set a custom username at guerrillamail.com domains
- Multiple domain options (guerrillamail.com, guerrillamail.net, spam4.me, grr.la)
- Scramble address button generates a new address if needed
- Open-source and long-running
Best for: Quick one-time registrations, downloading gated content, testing email forms.
Temp Mail
temp-mail.org generates a random address and inbox that persists for the browser session. Messages are stored until you delete them or generate a new address. The interface is clean and mobile-friendly.
Features:
- No registration required
- Address persists across sessions via local storage
- Supports attachments
- API access for developers
Best for: Users who need the inbox to persist through a multi-step registration process.
Mailnator
mailinator.com has an unusual model: all inboxes are public. Any email sent to anything@mailinator.com is readable by anyone who visits that inbox name. There is no privacy between users — it is designed purely for testing.
This makes Mailnator useless for private use but excellent for development teams testing email confirmation flows. Inboxes auto-delete after a few hours.
Best for: Developers testing email systems, not for personal privacy use.
10 Minute Mail
10minutemail.com gives you an address that lasts exactly 10 minutes, with the option to extend in 10-minute increments. It is the simplest option for situations where you need a quick confirmation.
Best for: Single confirmations where you want automatic expiration.
Inboxes.com (Fake Mail Generator)
fakemailgenerator.com supports multiple domains and lets you choose a custom username at their domains. Addresses persist indefinitely until you clear them, and no JavaScript is required to receive mail.
Alias-Based Services (Account Required, More Power)
These require creating an account with your real email but give you persistent, manageable aliases that forward to your inbox. They are superior for long-term privacy.
SimpleLogin (Best Free Tier)
simplelogin.io is an open-source email aliasing service acquired by Proton AG. It lets you create aliases that forward to your real inbox. When you reply through SimpleLogin, the recipient never sees your actual address.
Free tier: 10 aliases Paid (Proton Pass plan): Unlimited aliases (~$4/month or included with Proton Pass)
Key features:
- Reply/forward from aliases (sender sees alias, not your address)
- Custom domain support
- PGP encryption of forwarded emails
- Browser extension for one-click alias creation
- Import/export
- Can block or deactivate individual aliases
SimpleLogin’s biggest advantage over pure disposable services is persistence — you can maintain an alias for a service for years, then deactivate it if it starts receiving spam, without changing your real address.
AnonAddy
addy.io (formerly AnonAddy) is another open-source alias service with a generous free tier: 10 shared domain aliases or unlimited @USERNAME.anonaddy.com addresses.
The unlimited subdomain aliases on the free plan make AnonAddy exceptionally generous. Send email anything@yourusername.anonaddy.com and it forwards to your inbox.
Paid plans ($1/month) add custom domain support and API access.
Self-hosting: Both SimpleLogin and AnonAddy can be self-hosted on your own server for complete control.
Proton Pass (Integrated Aliases)
If you are already a Proton subscriber, Proton Pass (the Proton password manager) includes an integrated email alias feature powered by SimpleLogin. When you save a new login in Proton Pass, it offers to generate a SimpleLogin alias for you. This is the most seamless workflow for Proton ecosystem users.
Apple Hide My Email
Apple’s Hide My Email feature (part of iCloud+, starting at $0.99/month) generates random Apple-managed aliases that forward to your iCloud address. Available on Safari, iOS, macOS, and iCloud.com sign-up forms.
It is limited to Apple devices and services but integrates seamlessly if you are in the Apple ecosystem. You can generate aliases from Settings → [Your Name] → iCloud → Hide My Email.
Firefox Relay
Mozilla’s Firefox Relay offers 5 free email aliases with a free account. Paid plans ($1.99/month) include unlimited email aliases and phone number masking. Integrates with Firefox autofill.
Comparison Table
| Service | Type | Free Limit | Replies | Self-Host | Best For |
|---|---|---|---|---|---|
| Guerrilla Mail | Disposable | Unlimited | Yes | No | Quick one-time use |
| Temp Mail | Disposable | Unlimited | No | No | Session-long use |
| 10 Minute Mail | Disposable | Unlimited | No | No | Single confirmations |
| SimpleLogin | Alias | 10 aliases | Yes | Yes | Long-term aliases |
| AnonAddy | Alias | Unlimited* | Yes | Yes | Bulk aliases |
| Proton Pass | Alias | 10 aliases | Yes | No | Proton users |
| Apple Hide My Email | Alias | Unlimited† | No | No | Apple ecosystem |
| Firefox Relay | Alias | 5 aliases | No | No | Firefox users |
*Unlimited subdomain aliases on free plan
†Requires iCloud+ subscription
Which Should You Use?
For a quick throwaway registration: Use Guerrilla Mail or Temp Mail — no account needed, get your confirmation, done.
For ongoing privacy (recommended approach): Use SimpleLogin or AnonAddy. Create a unique alias for every service you sign up for. When an alias starts receiving spam, you know exactly which company sold or leaked your data, and you can deactivate that alias without touching your real address.
For Apple users: Apple Hide My Email provides an excellent seamless experience if you are already paying for iCloud+.
For developers: Use Mailinator for testing email flows — never use it for personal privacy.
Security Considerations
- Truly disposable inboxes are public or semi-public — do not use them for anything sensitive
- Alias services forward to your real address — if the alias service is compromised, your real address is exposed
- For maximum security, forward aliases to a dedicated Proton Mail or Tuta address, not your primary personal email
- Be aware that some services block known disposable email domains — AnonAddy and SimpleLogin with a custom domain bypass most of these blocks
Summary
Disposable email is an essential privacy tool in 2026. For casual use, Guerrilla Mail and Temp Mail require no account and work instantly. For serious long-term inbox hygiene, SimpleLogin and AnonAddy give you persistent aliases you can manage, deactivate, and trace back to the source when breached. Combine alias services with a private email provider like Proton Mail for a complete email privacy stack.