Runbox
Runbox: A mature private email host with broad protocol support, but only 2 GB on its entry plan. Ranked #7 of 28 in Secure Email Providers by our editors (8.0/10); pricing: 30-day trial; best for custom-domain users wanting mature private hosting.
At a glance
- Editor score8.0 / 10
- Pricing30-day trial
- Best forCustom-domain users wanting mature private hosting
- Free planNo
- Paid from€1.66/user/mo
- End-to-end encryptionYes
- Founded2000 · Oslo, Norway
- Facts checked15 Sep 2026
Where it wins
- Custom domains with unlimited aliases on your own domain
- IMAP, POP, SMTP, CalDAV and CardDAV support
- Filtering, encryption, two-factor authentication and import tools
Where it doesn't
- The Micro plan provides only 2 GB of email storage
- There is no free plan
- Listed plan prices require annual billing
Our verdict on Runbox
Runbox is a Norway-based private email service for individuals, families and teams. It combines webmail with custom-domain hosting, aliases, spam and virus filtering, two-factor authentication, encrypted connections, and access through IMAP, POP and SMTP. Integrated contacts and calendars support CardDAV and CalDAV synchronization, while import tools help bring email, contacts and calendar data into the service. Its long operating history since 2000 makes it suited to users seeking a mature private hosting option rather than a free mailbox.
The six paid plans scale storage and domain capacity. Micro costs €1.66 per user per month when billed annually and includes 2 GB, one email domain, 100 @runbox aliases and unlimited aliases on an own domain. Mini is €2.91 for 10 GB and five domains; Medium is €4.16 for 25 GB and 10 domains; Max is €6.66 for 50 GB and 25 domains. Max100 costs €10 for 100 GB and 50 domains, while Max250 costs €15 for 250 GB and 100 domains. Every listed plan includes 100 @runbox aliases and unlimited aliases on an own domain. A 30-day free trial is available.
Runbox fits established mail workflows through IMAP, POP and SMTP, with named compatibility for Apple Mail, Thunderbird, K-9 Mail and eM Client. Web, iOS and Android access broadens device coverage, while calendar and contact synchronization add useful productivity services around the mailbox. Full-disk encryption, encrypted connections and two-factor authentication strengthen its privacy posture. The main trade-off is scale at the entry tier: users with large storage needs may need a higher plan, and anyone seeking a free mailbox should choose another provider. Runbox is a strong fit for custom-domain users who value protocol flexibility and privacy features.
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Runbox pricing
All 6 Runbox plans and prices →
Runbox fact sheet
| Free plan | No |
|---|---|
| Paid from | €1.66/user/mo |
| End-to-end encryption | Yes |
| Custom domain | Yes |
| Mailbox storage | 2 GB |
| Email aliases | 100 aliases |
| Encrypted calendar | Not verified |
| Mail protocol support | Imap_smtp |
| Free trial | 30 days |
| Deployment | Cloud, Mobile |
| Platforms | Web, iOS, Android |
| Integrations | 9 integrations: IMAP, POP, SMTP, CalDAV, CardDAV, Apple Mail … |
| Pricing | 30-day trial (source) |
| Website | runbox.com |
| Facts checked | 15 Sep 2026 |
Runbox integrations
Runbox lists 9 integrations on its own site.
- IMAP
- POP
- SMTP
- CalDAV
- CardDAV
- Apple Mail
- Thunderbird
- K-9 Mail
- eM Client
Alternatives to Runbox
- Proton MailA complete secure email suite with a capable free plan and wide platform coverage.9.4
- Tuta MailA privacy-focused email service with strong encryption and open-source apps.9.2
- Aster MailA low-cost secure email service with encryption, aliases, domains, and broad device support.8.9
Runbox vs the competition
- Runbox vs Proton Mail
- Runbox vs Tuta Mail
- Runbox vs Aster Mail
- Runbox vs Mailfence
- Runbox vs eclipso Mail Europe
- Runbox vs mailbox
Compare Runbox with any tool side by side →
Also Ranked In
Runbox is ranked in 6 of our directories.
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Featured on iTechGuides
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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