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Mailfence

mailfence.com

From $2.50/mo Free plan WebWindowsmacOSLinuxiOSAndroid
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Spec score 9.1 #1 of 33 in Business Email Hosting

What it is

Mailfence is an email service with end-to-end encryption and access through the web, iOS and Android. Its free plan provides web access and 1 GB total storage, split between 500 MB for email and 500 MB for documents. Paid plans increase storage and, depending on tier, add aliases, custom domains and mail-client protocols. Base costs €2.50/mo (annual) and includes 11 GB total storage, 5 GB for email and 10 aliases, but no custom domain or POP, IMAP, SMTP or EAS access. Entry costs €3.50/mo (annual), with 40 GB total storage, 10 GB for email, 50 aliases, custom domains and POP, IMAP, SMTP and ActiveSync. Pro costs €9.50 per month and includes 78 GB total storage, up to 100 aliases, custom domains, protocol access 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 is headquartered in Brussels, Belgium, and was founded in 1999.

Spec sheet

What it does
Mailfence provides encrypted email together with calendars, documents, contacts, groups, chat and polls.Read 15 Oct 2026 · mailfence.com
Free plan
YesRead 15 Sep 2026 · blog.mailfence.com
Mobile apps
Native applications are available for iOS and Android, alongside a browser-installable progressive web app and downloadable Android APK.Read 15 Oct 2026 · kb.mailfence.com
Support
Free users receive knowledge-base support, while paid tiers add email support and higher plans add priority email and telephone support.Read 15 Oct 2026 · trustradius.com
Headquarters
Brussels, BelgiumRead 28 Sep 2026 · mailfence.com
Founded
1999Read 28 Sep 2026 · mailfence.com
API and extensibility
Business subscriptions provide an API for account management, while custom deployments can integrate SSO services and white labeling.Read 15 Oct 2026 · cloudwards.net
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.Read 15 Oct 2026 · kb.mailfence.com
Calendar
Calendar supports shared and public calendars, recurring events, reminders, polls and iTIP/iMIP meeting scheduling.Read 15 Oct 2026 · kb.mailfence.com
Calendar integrations
CalDAV works on every plan, including free, with Apple Calendar, Thunderbird, DAVx5, eM Client and Outlook through its synchronizer plugin.Read 15 Oct 2026 · kb.mailfence.com
Company headquarters and size
LinkedIn lists headquarters in Brussels, Belgium and company size of 11-50 employees.Read 15 Oct 2026 · linkedin.com
Company legal name
Crunchbase lists the legal entity as Mailfence - ContactOffice Group sa.Read 15 Oct 2026 · crunchbase.com
Contacts
Contacts can be synchronized through CardDAV or Exchange ActiveSync.Read 15 Oct 2026 · github.com
Custom domain
NoRead 15 Sep 2026 · blog.mailfence.com
Data residency
Mailfence states that its servers are based in Belgium and that it has no foreign parent company.Read 15 Oct 2026 · blog.mailfence.com
Digital signatures
Digital signatures authenticate the sender and protect message integrity.Read 15 Oct 2026 · mailfence.com
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.Read 15 Oct 2026 · kb.mailfence.com
Documents
Documents provides online file storage, editing, group sharing, public links and WebDAV access.Read 15 Oct 2026 · github.com
Email aliases
10Read 15 Sep 2026 · blog.mailfence.com
Email encryption
Browser-side OpenPGP encryption lets users exchange encrypted mail with other OpenPGP services.Read 15 Oct 2026 · mailfence.com
Email protocols
Paid accounts support SMTP, IMAP, POP, ActiveSync and xDAV clients.Read 15 Oct 2026 · kb.mailfence.com
End-to-end encryption
YesRead 15 Sep 2026 · blog.mailfence.com
Funding
Mailfence says it is self-funded and operates from subscription revenue without venture capital.Read 15 Oct 2026 · blog.mailfence.com
Key management
The service includes an integrated keystore for creating, importing, publishing and managing OpenPGP keys.Read 15 Oct 2026 · mailfence.com
Legal protection
Mailfence says Belgian law applies and disclosure requires a Belgian court order.Read 15 Oct 2026 · mailfence.com
Limit: attachment handling
A Google Play reviewer requests a download-all or ZIP option for multiple attachments.Read 15 Oct 2026 · play.google.com
Limit: interface
TechRadar says the interface is functional but dated and clunky, with limited customization.Read 15 Oct 2026 · techradar.com
Limit: mobile notifications
A Google Play reviewer reports receiving email notifications but not calendar-event notifications.Read 15 Oct 2026 · play.google.com
Limit: no desktop client
TechRadar reports that Mailfence has mobile apps but no dedicated desktop client.Read 15 Oct 2026 · techradar.com
Limit: registration
Trustpilot reviewers report signup refusals after security-code verification and say the rejection reasons were unclear.Read 15 Oct 2026 · trustpilot.com
Limit: spam delivery
Trustpilot reviewers report legitimate messages being routed to spam even after whitelisting.Read 15 Oct 2026 · trustpilot.com
Mail protocol support
noneRead 15 Sep 2026 · blog.mailfence.com
Mailbox storage
5Read 15 Sep 2026 · blog.mailfence.com
Mobile source availability
Mailfence describes its mobile app as open source, while its Android repository says the repository is intended for APK distribution and issue reporting rather than making the code open source.Read 15 Oct 2026 · kb.mailfence.com
Open-source status
The hosted Mailfence service is not open source; the company says it may eventually open-source the front end and permits recognized audits of the back end.Read 15 Oct 2026 · kb.mailfence.com
Praise: integrated suite
Independent reviewers highlight the combination of email, documents, calendars, contacts and collaboration tools.Read 15 Oct 2026 · capterra.com
Praise: security and privacy
G2 reviewers repeatedly praise Mailfence for secure encrypted email, privacy protection and a trustworthy alternative to large providers.Read 15 Oct 2026 · g2.com
Praise: usability and support
G2 and Capterra reviewers commonly describe the interface as easy to use and customer support as responsive.Read 15 Oct 2026 · g2.com
Rating on Apple App Store
3.9 out of 5 from 112 ratingsRead 15 Oct 2026 · apps.apple.com
Rating on Capterra
4.3 out of 5 from 23 reviewsRead 15 Oct 2026 · capterra.com
Rating on G2
4.7 out of 5 from 5 reviewsRead 15 Oct 2026 · g2.com
Rating on Google Play
3.5 out of 5 from 413 reviewsRead 15 Oct 2026 · play.google.com
Rating on Software Advice
4.3 out of 5 from 23 reviewsRead 15 Oct 2026 · softwareadvice.com
Rating on Trustpilot
3.1 out of 5 from 172 reviewsRead 15 Oct 2026 · trustpilot.com
Rating on TrustRadius
7 out of 10 from 2 reviewsRead 15 Oct 2026 · trustradius.com
Security controls
The service supports AES-256-protected OpenPGP keys, perfect forward secrecy, MTA-STS, DANE and two-factor authentication.Read 15 Oct 2026 · techradar.com
Security transport
Mailfence states that web and IMAP/POP/SMTP connections use SSL/TLS and that outgoing SMTP uses TLS.Read 15 Oct 2026 · techradar.com
Sending limits
Free accounts are limited to 50 emails per day, 10 recipients per hour and three recipients per message through the web interface.Read 15 Oct 2026 · kb.mailfence.com

Plans and prices

Free Free billed monthly 1 GB total storage · 500 MB email storage · 500 MB document storage · Web access Read 15 Sep 2026 · blog.mailfence.com
Base €2.50 a month billed annually 11 GB total storage · 5 GB email storage · 10 aliases · No custom domain · No POP/IMAP/SMTP/EAS access Read 15 Sep 2026 · blog.mailfence.com
Entry €3.50 a month billed annually 40 GB total storage · 10 GB email storage · 50 aliases · Custom domains · POP, IMAP, SMTP, and ActiveSync Read 15 Sep 2026 · blog.mailfence.com
Pro €9.50 a month 78 GB total storage · Up to 100 aliases · Custom domains · POP, IMAP, SMTP, and ActiveSync · Priority support Read 15 Sep 2026 · blog.mailfence.com
Ultra €29 a month billed monthly 225 GB total storage · Up to 200 aliases · Custom domains · POP, IMAP, SMTP, and ActiveSync · Priority support Read 15 Sep 2026 · blog.mailfence.com
Free Free 1 GB total · 500 MB email · 500 MB documents · no IMAP/SMTP/POP Read 15 Oct 2026 · mailfence.com
Base $2.50 a month $30 billed every year 11 GB total · 5 GB email · 6 GB documents · 10 aliases · no custom domain or IMAP/SMTP/POP Read 15 Oct 2026 · cloudwards.net
Entry $3.85 a month $46.20 billed every year 40 GB total · 10 GB email · 30 GB documents · 50 aliases · custom domains · POP/IMAP/SMTP/EAS Read 15 Oct 2026 · cloudwards.net
Pro $10.45 a month monthly 78 GB total · 30 GB email · 48 GB documents · 100 aliases · priority email and telephone support Read 15 Oct 2026 · techradar.com
Ultra $31.90 a month $382.80 billed every year 225 GB total · 60 GB email · 165 GB documents · 200 aliases · 10 custom domains · priority support Read 15 Oct 2026 · cloudwards.net

Every Mailfence plan and price →

Strong points and limits

Strong points

  • End-to-end encryption is listed.
  • Free plan includes 1 GB total storage.
  • Entry includes custom domains and mail protocols.
  • Pro and Ultra include priority support.

Limits

  • Free plan provides web access only.
  • Base has no custom domain.
  • Base has no POP, IMAP, SMTP or EAS access.

Who it suits

Mailfence may suit people seeking encrypted email with web and mobile access, from a free web-only tier to paid options with mail-client protocols. The higher tiers add custom domains and larger alias allowances.

Verdict

Mailfence offers a free entry point and paid tiers that expand storage, aliases and connectivity. Compare each plan's protocol and custom-domain support as well as its listed price.

Where Specifiction places it

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