Proton Pass is a password manager that happens to do aliases well, and that bundle is its main argument. Pass Plus is $35.88/year and includes unlimited aliases, unlimited custom domains, unlimited extra mailboxes and sending from an alias — alongside a full password manager, 2FA authenticator and dark web monitoring. If you want a password manager anyway, the alias functionality is close to free. Don't SPAM Me does only aliases, with no subscription and per-alias spam attribution.
Comparison
| Proton Free | Pass Plus | Don't SPAM Me | |
|---|---|---|---|
| Price | $0 | $35.88/yr ($2.99/mo promo, list $4.99) | $0 + your domain |
| Aliases | 10 | Unlimited | Unlimited |
| Custom domain | ✗ | ✓ Unlimited | ✓ Required |
| Additional mailboxes | ✗ | ✓ Unlimited | ✓ Per-alias forwarding |
| Send from alias | ✗ | ✓ | ✗ Not yet |
| Password manager | ✓ Unlimited logins | ✓ Full | ✗ |
| 2FA authenticator | ✗ | ✓ | ✗ |
| Dark web monitoring | ✗ | ✓ | ✗ |
| Browser extension | ✓ | ✓ | ✗ |
| Aliases auto-create on first mail | ✗ | ✗ | ✓ |
| Per-alias spam attribution | ✗ | ✗ | ✓ |
| Leak alerts naming the sender | ✗ | ✗ | ✓ |
| Disable behaviour | Deactivate alias | Deactivate alias | Hard SMTP 550, attempts logged |
What Proton Pass does better
- It's a password manager first. If you need one — and most people do — then aliases arrive as part of a product you were going to buy. That changes the value calculation completely.
- Sending from an alias. Replies come from the alias, keeping your real address private. We don't support this.
- Unlimited additional mailboxes, so different aliases can route to entirely different inboxes.
- Browser extension and apps across desktop and mobile.
- 2FA authenticator, dark web monitoring, secure sharing, emergency access — a genuinely broad security bundle.
- A usable free tier. 10 aliases with no domain required is enough to test the idea before spending anything.
Where Don't SPAM Me differs
Attribution
The substantive difference. Every alias carries its own spam statistics; when a sender that isn't the original signup company first emails an alias, you get an email and push alert naming that sender's domain; and a Data Sellers list accumulates showing which companies leaked you. Proton Pass masks your address well and tells you nothing about what happened to it afterwards.
No creation step
Catch-all is always on, so an address exists the moment mail arrives for it. You invent retailer@yourdomain.com at the signup form with no extension, no app switch and nothing pre-created. Proton supports custom domains but you create the alias first.
Hard bounce on disable
Mail to a disabled alias is rejected with an SMTP 550 rather than accepted and discarded, which prompts mailing platforms to suppress the address — and we still log the attempts so you can see who kept trying. Why that matters.
No subscription
Free software; the domain is the cost. But note that Pass Plus at $35.88/year includes a password manager, so this isn't a clean saving — it's a narrower product at a lower price.
Proton's $2.99/month is a promotional rate discounted 40% from a $4.99 list price. Promotions end. If you're comparing on price, check the current figure and what it renews at rather than trusting any comparison table — including this one — that was written on a particular day.
Who should pick which
| If you… | Choose |
|---|---|
| Need a password manager as well | Proton Pass Plus |
| Need to send or reply from an alias | Proton Pass Plus |
| Want to try aliases without a domain | Proton Free (10 aliases) |
| Want one vendor for passwords, mail, VPN and storage | Proton Unlimited |
| Already have a password manager you like | Don't SPAM Me |
| Want to know which company leaked each address | Don't SPAM Me |
| Want addresses that exist without creating them first | Don't SPAM Me |
| Don't want another subscription | Don't SPAM Me |
The verdict
These aren't really competing on the same axis. Proton Pass is a security suite where aliases are one capability among many, and if you want that suite it's good value with aliases effectively included.
Don't SPAM Me does one thing. The case for it is that the one thing includes attribution, which the suite doesn't — and that you don't take on a subscription for a capability you may already have covered.
Worth noting that both put aliases on a domain you own, so neither locks you in at the namespace level. That's the property that matters most long-term, and it's the reason both belong above provider-hosted alternatives if you're going to depend on the addresses.
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