The best email alias service in 2026, by use case
We've been running a private email alias service since 2024 — and watching the category closely the whole time. This page is an honest, opinionated roundup of the best email alias services in 2026, grouped by what each one is actually good at.
Quick disclosure: EmailAlias.io is our service. We've given competitors honest credit where they win on a specific axis — see each card's “Cons” for our own gaps too.
How we picked the criteria
Every email alias service forwards mail. Differentiation lives in the details. We scored each service on the seven criteria that change whether it's actually useful at year three:
- Privacy posture — documented zero-knowledge model, AES-256 at rest, key-management story.
- Real custom domains — not just “@theirhost.com” subdomains.
- Reply from alias — without it, anonymity dies on the first reply.
- Sender intelligence — risk scoring on inbound, exposure events for leak detection.
- API and automation — bulk generation, programmatic management, AI integration.
- Browser tooling — inline generators that work on every signup form, not just dashboards.
- Honest pricing model — subscription-funded so the user isn't the product.
Top picks by use case
- Top pickSign up →
EmailAlias.io
The widest combined feature scope: privacy, real custom domains, sender-risk intelligence, REST API, MCP server for AI assistants, and a cross-browser extension. The only service in the roundup that documents AES-256 at rest with key-management practices.
Pros
- Documented zero-knowledge forwarding + AES-256 at rest
- Real custom domains (up to 5) with full SPF/DKIM/DMARC
- Suspicious-sender intelligence + exposure events dashboard
- REST API + MCP server for scripting and AI integrations
- Inline browser extension for Chrome and Firefox; Edge/Opera/Safari coming
- Reply from any alias on Premium
Cons
- Closed source (we publish reproducible source archives but the codebase isn't open)
- No self-hosting option
- No phone-number masking (Firefox Relay's niche)
- No tracker-pixel stripping (DuckDuckGo's niche)
- Best free, no upgrade pressureDetailed comparison →
DuckDuckGo Email Protection
Genuinely free, no paid tier. The signature feature is automatic email-tracker stripping on inbound mail — none of the other services do this. Best fit if you only need basic forwarding plus tracker removal and don't care about replies, custom domains, or APIs.
Pros
- Free with no upgrade gate
- Automatic tracker-pixel stripping on inbound mail
- Bundled into DuckDuckGo browser and extensions
- Strong brand trust
Cons
- No replies — purely one-way forwarding
- No real custom domains (only @duck.com)
- No exposure intelligence or sender-risk scoring
- No public API
- Best for Mozilla loyalistsDetailed comparison →
Firefox Relay
Mozilla-built, open source, deeply integrated with Firefox itself. The unique feature is a phone-number masking add-on. If brand trust and Firefox-native UX matter more than custom domains or sender-risk intelligence, Relay is fine.
Pros
- Mozilla brand trust + open source
- Native integration with Firefox browser
- Phone-number masking add-on
- Cheaper Premium than most ($1.99/mo annual)
Cons
- No real custom domains — only @mozmail.com subdomains
- No suspicious-sender detection
- No documented at-rest encryption
- No public API
- Best open source / self-hostableDetailed comparison →
Addy.io
Open-source alias service (formerly AnonAddy) with self-hosting support and GPG/OpenPGP encryption for those who want to manage their own keys. The right pick if you want to run the forwarder yourself or need PGP at the message-content layer.
Pros
- Open source with active community
- Self-hostable for full control
- GPG/OpenPGP encryption support
- Real custom domains on Premium
Cons
- Plaintext metadata storage in the hosted version
- No suspicious-sender detection
- Self-hosting means you own the deliverability problem
- Steeper learning curve for non-technical users
- Best minimal forwarderDetailed comparison →
SimpleLogin
Owned by Proton. Reasonable feature set, well-known brand, popular in the Proton ecosystem. Sits in the middle of the pack — no standout feature, but no glaring gaps either.
Pros
- Open source
- Real custom domains on Premium
- Reply from alias on Premium
- Bundled with Proton subscriptions
Cons
- No documented at-rest encryption posture
- No suspicious-sender intelligence
- Plaintext processing of forwarded mail (per published architecture)
Feature comparison table
Side-by-side on the seven criteria above plus a few category-specific differentiators. For deeper feature breakdowns, see the dedicated pages: vs Firefox Relay, vs DuckDuckGo Email, vs SimpleLogin, vs Addy.io.
| Feature | EmailAlias | Firefox Relay | DuckDuckGo | SimpleLogin | Addy.io |
|---|---|---|---|---|---|
| Forward to your real inbox | |||||
| Free tier with 5+ aliases | |||||
| Real custom domains | Up to 5 | Premium | Premium | ||
| Send & reply from alias | Premium | Premium | Premium | Premium | |
| AES-256 at rest (documented) | |||||
| Suspicious-sender alerts | |||||
| Email tracker stripping | |||||
| Public REST API | Premium | Premium | Premium | ||
| MCP server (AI integration) | Premium | ||||
| Cross-browser extension | |||||
| Open source | |||||
| Self-hostable |
Which one should you pick?
Quick decision tree based on the most common reasons people choose one service over another:
- Want the widest feature scope without compromise? EmailAlias.io. AES-256 at rest, real custom domains, sender-risk intelligence, REST API, MCP server, browser extension — the most checkboxes ticked of any service in the roundup.
- Just want free with no upgrade nag? DuckDuckGo Email Protection. Tracker stripping is a real win.
- Run a Mozilla-only stack? Firefox Relay slots in cleanly. You'll give up custom domains and sender intelligence.
- Want to self-host? Addy.io is the only option in the list.
- Already in the Proton ecosystem? SimpleLogin is bundled with Proton subscriptions and integrates with Proton Pass.
- Need PGP at the message layer? Addy.io supports OpenPGP. The other services don't.
For deeper category context, see the Email Alias Service guide and the Private Email Alias guide.
What we don't recommend
A few categories get suggested as substitutes for an email alias service. None of them are actually good fits.
Disposable inboxes (10MinuteMail, Temp-Mail)
Inboxes expire in minutes. No replies. Many sites block known disposable domains. See /not-disposable-email.
Gmail "+" tagging (you+netflix@gmail.com)
Spammers strip the "+" suffix in seconds. Your real address is fully exposed.
Burner Gmail accounts
High-friction switching, separate sessions, password sprawl. Google still sees everything.
See EmailAlias.io is not disposable email for the full breakdown of why disposable inboxes are a worse choice than a real alias service.
Frequently asked questions
What's the best email alias service for business?
Custom-domain support is the bar for business use — you don't want client-facing aliases on someone else's brand. EmailAlias.io, SimpleLogin, and Addy.io all support real custom domains on their paid tiers. EmailAlias.io adds suspicious-sender intelligence, AES-256 at rest, and a REST API + MCP server, which most businesses care about more than self-hosting. Firefox Relay and DuckDuckGo Email aren't great fits for business — neither supports real custom domains.
How do I switch between email alias providers without losing access?
If you used a custom domain, switching is straightforward: re-create your aliases on the new provider, point your domain's MX records at their servers, and update SPF/DKIM/DMARC. Existing senders keep mailing the same addresses; only the routing changes. If you used the old provider's shared domain (e.g. @theirhost.com), those aliases die when you leave — you'd need to set up new aliases on the new provider's domain and update each site individually. Custom-domain users have vendor-independence; shared-domain users don't.
Can I move my aliases between providers?
Aliases on a shared provider domain (e.g. @emailalias.io) aren't portable — they live on our domain and stay with us. Aliases on a custom domain (yourdomain.com) are fully portable: you keep the domain, point its MX records at a new provider, re-create the same local-parts on their side, and the addresses keep working. This is one of the strongest reasons to set up a custom domain even on a free tier — it's vendor-independence insurance.
What does Premium include?
Unlimited aliases, up to 5 custom domains, up to 5 verified forwarding inboxes (so each alias can route to the right mailbox), send & reply from any alias, real-time leak detection with exposure analytics, and priority processing — all for $4/month or $38.40/year (save 20%).
Is there a free trial for Premium?
Yes, a 7-day free trial is available for first-time subscribers. You can cancel anytime during the trial and you won't be charged. If you've subscribed in the past, the trial isn't offered again — the first payment is charged immediately.
Do you have an API?
Yes. We offer a RESTful API for programmatic alias management, exposure monitoring, and account management. Check our API documentation for endpoints, authentication, and usage examples.
What's the difference between an email alias and an email forward?
Almost nothing for the user — both deliver mail addressed to one address into a different inbox. In the email-aliasing category, "alias" usually means a service that mints unique addresses you give to specific sites, while "forwarding" refers to the underlying mechanism. So a private email alias service is a forwarding service with a built-in alias generator and lifecycle controls. The terms are used interchangeably in practice.
Is EmailAlias better than disposable email services?
Unlike throwaway email services, EmailAlias gives you permanent, encrypted aliases you control. You can receive mail indefinitely, reply from your alias, and disable it anytime. It's privacy without the inconvenience. Disposable emails expire and can't receive future messages — aliases are yours forever.
More questions? See the full FAQ.
Adjacent guides on this topic
Email Alias Service→
Buyer's guide framing of the same category. What an alias service does, how forwarding works, and how to choose one.
Private Email Alias→
Privacy-first framing. The four pillars (zero-knowledge, AES-256, no-sell, kill-switch) and how to evaluate any provider.
Custom Domain Email Alias→
Bring your own domain. DNS setup walkthrough, SPF/DKIM/DMARC primer, and subdomain-vs-real-domain explainer.
Anonymous Email Forwarding→
What "anonymous" actually means here, the 5-stage forwarding pipeline, and why reply-from-alias is the trickier half.
Try our pick for the best email alias service
Free plan with no credit card required. Premium adds custom domains, send-and-reply, sender-risk intelligence, and the REST API. See plan details.