Firefox Relay vs IceWarp
In short: IceWarp wins on privacy, Firefox Relay wins on price, and IceWarp wins on features. The full comparison is below, last checked 25 October 2026.
Which should you choose?
- Go for Firefox Relay if you'd like the lower price ($0.99 a month); to try it free first; and apps whose code is public.
- IceWarp suits you best if you want email at your own domain name; more room (2 GB, against none); and to read your mail in any app, such as Apple Mail, Outlook or Thunderbird.
| Feature | Firefox Relay | IceWarp |
|---|---|---|
| Overall | 2.5 | 3.0 |
| Privacy | 1.0 | 1.5 |
| Price | 5.0 | 4.5 |
| Features | Not rated | 4.0 |
| Cheapest plan | Premium $0.99 a month | Cloud, entry plan $1.35 a user a month, yearly ($1.50 monthly) |
| Free plan | Yes, 5 aliases | No |
| Storage | Forwards only | 2 GB |
| Your own domain | Own subdomain only | ✓ Yes |
| End-to-end encryption | No | No |
| Company based in | United States (Mozilla) | Czechia |
| Your data is kept in | United States | The data centre you choose |
| Founded | 2020 | Unknown |
| Free trial | Free plan | First month free |
| Funded by advertising | No | No |
| Works in any mail app | No, its own apps only | ✓ IMAP and SMTP |
| Calendar and contacts | No | ✓ Yes |
| Aliases | Unlimited aliases | Yes |
| Open-source apps | ✓ Yes | No |
| Sign up without ID | No | No |
| White label | No | Unknown |
| Reader offer | None | None |
| Last checked | 25 October 2026 | 25 October 2026 |
Want to add another? Open this in the compare tool.
The key differences
- Cheapest plans: Firefox Relay Premium, $0.99 a month. IceWarp Cloud, entry plan, $1.35 a user a month, yearly ($1.50 monthly).
- Firefox Relay has a free plan (5 aliases); IceWarp has no free plan.
- Space: Firefox Relay gives no storage, as it forwards mail on, IceWarp 2 GB of storage.
- Firefox Relay keeps your mail in the United States, while IceWarp keeps it in The data centre you choose.
- The companies sit under different laws: Firefox Relay in United States (Mozilla), IceWarp in Czechia.
- You can use your own domain with IceWarp, but not with Firefox Relay.
- Mail apps: Firefox Relay only works in its own apps; IceWarp works in any mail app over IMAP.
- Aliases: Firefox Relay offers unlimited aliases, IceWarp yes.
Common questions
Is Firefox Relay more private than IceWarp?
IceWarp scores 1.5 out of 5 for privacy and Firefox Relay 1.
Is Firefox Relay cheaper than IceWarp?
Firefox Relay is cheaper. Its Premium plan is $0.99 a month, against $1.35 a user a month, yearly ($1.50 monthly) for IceWarp's Cloud, entry plan. Firefox Relay also has a free plan. Check the renewal price before you pay, as some first-year prices go up.
Can I use my own domain with Firefox Relay or IceWarp?
Only IceWarp does (Yes). With Firefox Relay your address stays on its own domain.
Where is my email stored with Firefox Relay and IceWarp?
Firefox Relay keeps it in the United States. IceWarp keeps it in The data centre you choose.
Can I use Firefox Relay and IceWarp in Apple Mail or Outlook?
Firefox Relay only works in its own apps. IceWarp works in any mail app over IMAP.
Prices and the latest news
- 22 October 2026 IceWarp: $3.50 a user a month, when I checked
The latest headlines: Firefox Relay news · IceWarp news.
Also worth a look
Firefox Relay vs mailbox.org · IceWarp vs mailbox.org · Firefox Relay vs Posteo · IceWarp vs Posteo · Firefox Relay vs Proton Mail · IceWarp vs Proton Mail
Moving your email
Moving between any two providers works the same way. Pick your two providers for the steps.