Best Secure Email Providers in 2026
Updated
In short: Aster Mail is ranked #1 of 28 as of 5 October 2026, ahead of eclipso Mail Europe and Proton Mail. The best-ranked option with a free plan is eclipso Mail Europe. The lowest first paid tier on this page is NevTan Mail at $0.17/mo.
Choosing secure email means balancing privacy features with the practical details of using an inbox. Compared on end-to-end encryption, encrypted calendar, custom domains, email aliases, mailbox storage, and mail protocol support, these providers also show free-plan availability and paid-from pricing. Aster Mail, eclipso Mail Europe, and Proton Mail are among the entries. Consider how you access mail, whether you need a custom domain or aliases, and how much storage fits your use. Calendar encryption may also matter if you want that feature alongside email.
28 secure email providers ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
Secure Email Providers, one module each. A lit port is something its maker publishes; 0 of the 25 on this page have a public API.
- 01 Aster Mail API not on recordOSS yesFREE yesDOCS 6.8$2.42/mo
- 02 eclipso Mail Europe API not on recordOSS not on recordFREE yesDOCS 6.0€1.49/mo
- 03 Proton Mail API not on recordOSS not on recordFREE yesDOCS 6.0Free
- 04 Tuta Mail API not on recordOSS not on recordFREE yesDOCS 6.0€3/mo
- 05 Mailo API not on recordOSS not on recordFREE yesDOCS 5.9€1.50/mo
- 06 mail.de API not on recordOSS not on recordFREE yesDOCS 5.8€0.99/mo
- 07 Mailfence API not on recordOSS not on recordFREE yesDOCS 5.8€2.50/mo
- 08 Neir API not on recordOSS not on recordFREE yesDOCS 5.7$4.99/mo
- 09 NevTan Mail API not on recordOSS not on recordFREE yesDOCS 5.7$0.17/mo
- 10 OwnMail API not on recordOSS not on recordFREE yesDOCS 5.7$4.99/mo
- 11 QeyeT API not on recordOSS not on recordFREE yesDOCS 5.7
- 12 SecureMyEmail API not on recordOSS not on recordFREE yesDOCS 5.7Free
- 13 Disroot Email API not on recordOSS not on recordFREE yesDOCS 5.6Free
- 14 Private.Ki Mail API not on recordOSS not on recordFREE yesDOCS 5.5$5/mo
- 15 CounterMail API not on recordOSS not on recordFREE not on recordDOCS 5.4$6.58/mo
- 16 EPRIVO API not on recordOSS not on recordFREE not on recordDOCS 5.4$0.42/mo
- 17 Hushmail API not on recordOSS not on recordFREE not on recordDOCS 5.3$5/mo
- 18 Private-Mail API not on recordOSS not on recordFREE not on recordDOCS 5.3
- 19 Kolab Now API not on recordOSS not on recordFREE not on recordDOCS 5.2CHF 5/mo
- 20 mailbox API not on recordOSS not on recordFREE not on recordDOCS 5.2€1/mo
- 21 Runbox API not on recordOSS not on recordFREE not on recordDOCS 5.2€1.66/mo
- 22 StartMail API not on recordOSS not on recordFREE not on recordDOCS 5.2$4.99/mo
- 23 Mailopoly API not on recordOSS not on recordFREE not on recordDOCS 5.1$6.99/mo
- 24 PrivMail API not on recordOSS not on recordFREE not on recordDOCS 5.1$8/mo
- 25 Secure-Email.org API not on recordOSS not on recordFREE not on recordDOCS 5.1€4.17/mo
Compare all 25 in a table
| # | Platform | Score | Free plan | From | Free plan | Paid from | End-to-end encryption | Custom domain |
|---|---|---|---|---|---|---|---|---|
| 1 | Aster Mail | 6.8 | Free plan | $2.42/mo | Yes | 2.42 /user/mo | Yes | Yes |
| 2 | eclipso Mail Europe | 6.0 | Free plan | €1.49/mo | Yes | — | Yes | No |
| 3 | Proton Mail | 6.0 | Free plan | Free | Yes | — | Yes | Yes |
| 4 | Tuta Mail | 6.0 | Free plan | €3/mo | Yes | — | Yes | Yes |
| 5 | Mailo | 5.9 | Free plan | €1.50/mo | Yes | — | Yes | Yes |
| 6 | mail.de | 5.8 | Free plan | €0.99/mo | Yes | — | Yes | — |
| 7 | Mailfence | 5.8 | Free plan | €2.50/mo | Yes | — | Yes | No |
| 8 | Neir | 5.7 | Free plan | $4.99/mo | Yes | — | No | — |
| 9 | NevTan Mail | 5.7 | Free plan | $0.17/mo | Yes | — | — | Yes |
| 10 | OwnMail | 5.7 | Free plan | $4.99/mo | Yes | — | Yes | Yes |
| 11 | QeyeT | 5.7 | No | — | No | — | Yes | Yes |
| 12 | SecureMyEmail | 5.7 | Free plan | Free | Yes | — | Yes | — |
| 13 | Disroot Email | 5.6 | Free plan | Free | Yes | — | No | Yes |
| 14 | Private.Ki Mail | 5.5 | Free plan | $5/mo | Yes | — | Yes | — |
| 15 | CounterMail | 5.4 | No | $6.58/mo | No | 3.29 /user/mo | Yes | Yes |
| 16 | EPRIVO | 5.4 | No | $0.42/mo | — | 0.42 /user/mo | Yes | Yes |
| 17 | Hushmail | 5.3 | No | $5/mo | No | — | — | Yes |
| 18 | Private-Mail | 5.3 | No | — | Yes | — | Yes | Yes |
| 19 | Kolab Now | 5.2 | No | CHF 5/mo | No | — | No | Yes |
| 20 | mailbox | 5.2 | No | €1/mo | No | — | Yes | Yes |
| 21 | Runbox | 5.2 | No | €1.66/mo | No | — | Yes | Yes |
| 22 | StartMail | 5.2 | No | $4.99/mo | No | 4.99 /user/mo | Yes | Yes |
| 23 | Mailopoly | 5.1 | No | $6.99/mo | No | — | Yes | Yes |
| 24 | PrivMail | 5.1 | No | $8/mo | No | 12.95 /user/mo | — | — |
| 25 | Secure-Email.org | 5.1 | No | €4.17/mo | No | — | Yes | — |
Is your platform on this list?
Numbered spots on this list can be sponsored, and a sponsored row is labelled as paid.
Questions about this list
Which secure email provider is ranked first on Inferse?
Aster Mail is ranked #1 of 28 with a score of 6.8. eclipso Mail Europe is second and Proton Mail third.
How many of these have a free plan?
13 of the 25 on this page publish a free plan on their own pricing pages.
Which is the cheapest paid option?
On this page, NevTan Mail has the lowest first paid tier we found: $0.17/mo.
How is this list ranked?
Ranked on what each maker publishes, open and connectable first: a public API, open-source code, the depth of its documentation and a free tier to try it on. Model lists are sorted by the figure in their title, exactly as each provider publishes it.