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Mailfence
Mailfence · Brussels, Belgium · founded 1999
What it is
Mailfence is an email service with end-to-end encryption and access through web, iOS, and Android. Its free plan provides web access and 1 GB of total storage, split between 500 MB for email and 500 MB for documents. Paid tiers add storage, aliases, custom domains, and mail protocol access at different levels. Base costs €2.50/mo (annual) and includes 11 GB total storage, 5 GB for email, and 10 aliases; it does not include a custom domain or POP, IMAP, SMTP, or EAS access. Entry costs €3.50/mo (annual) and includes 40 GB total storage, 10 GB for email, 50 aliases, custom domains, and POP, IMAP, SMTP, and ActiveSync. Pro costs €9.50 per month, with 78 GB total storage, up to 100 aliases, protocol access, custom domains, and priority support. Ultra costs €29.00 per month billed monthly, with 225 GB total storage, up to 200 aliases, custom domains, protocol access, and priority support. Mailfence was founded in 1999 and is headquartered in Brussels, Belgium.
For and against
For
- End-to-end encryption.
- Web, iOS, and Android access.
- Free plan includes 1 GB total storage.
- Paid tiers offer custom domains and protocol access.
Against
- Free plan lists web access only.
- Base has no custom domain or mail protocol access.
- Entry and Base prices are billed annually.
The verdict
Mailfence offers a free web-access tier and paid plans with progressively more storage and mail features. Check each tier’s protocol and domain limits to match your setup.
Who it suits
Mailfence may suit people seeking encrypted email across web and mobile access. Its plan tiers also accommodate users who need more storage, aliases, custom domains, or mail protocol access.
Plans and prices
Free
1 GB total · 500 MB email · 500 MB documents · no IMAP/SMTP/POP
Read 15 Oct 2026 · mailfence.com
Base
11 GB total · 5 GB email · 6 GB documents · 10 aliases
Read 15 Oct 2026 · cloudwards.net
Entry
40 GB total · 10 GB email · 30 GB documents · 50 aliases
Read 15 Oct 2026 · cloudwards.net
Pro
78 GB total · 30 GB email · 48 GB documents · 100 aliases
Read 15 Oct 2026 · techradar.com
Ultra
225 GB total · 60 GB email · 165 GB documents · 200 aliases
Read 15 Oct 2026 · cloudwards.net
On the record
- API and extensibility
- Business subscriptions provide an API for account management, while custom deployments can integrate SSO services and white labeling.cloudwards.net · read 15 Oct 2026
- Attachment limits
- Incoming messages are limited to 50 MB; outgoing messages are limited to 20 MB on free and 50 MB on Entry, Pro and Ultra.kb.mailfence.com · read 15 Oct 2026
- Calendar
- Calendar supports shared and public calendars, recurring events, reminders, polls and iTIP/iMIP meeting scheduling.kb.mailfence.com · read 15 Oct 2026
- Calendar integrations
- CalDAV works on every plan, including free, with Apple Calendar, Thunderbird, DAVx5, eM Client and Outlook through its synchronizer plugin.kb.mailfence.com · read 15 Oct 2026
- Company headquarters and size
- LinkedIn lists headquarters in Brussels, Belgium and company size of 11-50 employees.linkedin.com · read 15 Oct 2026
- Company legal name
- Crunchbase lists the legal entity as Mailfence - ContactOffice Group sa.crunchbase.com · read 15 Oct 2026
- Contacts
- Contacts can be synchronized through CardDAV or Exchange ActiveSync.github.com · read 15 Oct 2026
- Custom domain
- Noblog.mailfence.com · read 15 Sep 2026
- Data residency
- Mailfence states that its servers are based in Belgium and that it has no foreign parent company.blog.mailfence.com · read 15 Oct 2026
- Digital signatures
- Digital signatures authenticate the sender and protect message integrity.mailfence.com · read 15 Oct 2026
- Documentation
- The knowledge base is organized into account, messages, calendar, documents, contacts, groups, polls, chat, mobile, external-client, encryption and transparency topics, with full application documentation linked.kb.mailfence.com · read 15 Oct 2026
- Documents
- Documents provides online file storage, editing, group sharing, public links and WebDAV access.github.com · read 15 Oct 2026
- Email aliases
- 10blog.mailfence.com · read 15 Sep 2026
- Email encryption
- Browser-side OpenPGP encryption lets users exchange encrypted mail with other OpenPGP services.mailfence.com · read 15 Oct 2026
- Email protocols
- Paid accounts support SMTP, IMAP, POP, ActiveSync and xDAV clients.kb.mailfence.com · read 15 Oct 2026
- End-to-end encryption
- Yesblog.mailfence.com · read 15 Sep 2026
- Funding
- Mailfence says it is self-funded and operates from subscription revenue without venture capital.blog.mailfence.com · read 15 Oct 2026
- Key management
- The service includes an integrated keystore for creating, importing, publishing and managing OpenPGP keys.mailfence.com · read 15 Oct 2026
