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Email providers

mailbox.org Logomailbox.orgvsTuta (Tutanota) LogoTuta (Tutanota)

Both score similarly on sovereignty (84 vs 84). The right choice depends on the details below – open source, self-hosting, pricing and focus.

Score comparison

mailbox.orgTuta (Tutanota)
Sovereignty
84
84
Privacy
85
93
Open Source
45
85
Business fit
76
66
Migration ease
65
55
Pricing transparency
80
82
Enterprise readiness
70
58

Features & facts

mailbox.orgTuta (Tutanota)
CountryGermanyGermany
Open SourceNoYes
Self-HostingNoNo
Cloud/SaaSYesYes
EU data residencyYesYes
DPA / AV-VertragYesYes
ISO 27001Yesunknown
Data locationGermany (Berlin, two redundant data centers)Germany
From1 € / Monat3 € / Monat
Founded20142011
mailbox.org Logo

German business email and groupware with servers in Berlin – based on Open-Xchange, ISO 27001 and BSI C5.

Strengths

  • Standard protocols (IMAP/SMTP/CalDAV), PGP & S/MIME, groupware
  • Servers exclusively in Germany, ISO 27001 + BSI C5
  • Affordable from €1/month, ad-free

Weaknesses

  • No continuous end-to-end encryption like Tuta/Proton
  • Interface feels less modern
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Tuta (Tutanota) Logo

End-to-end encrypted email and calendar from Germany – open source and ad-free.

Strengths

  • End-to-end encrypted, headquarters and servers in Germany
  • Open-source apps, ad-free
  • Low-cost entry plans

Weaknesses

  • No classic IMAP/SMTP access due to encryption
  • Fewer groupware/business features
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Choose mailbox.org if…

  • Freelancers and SMEs that want groupware instead of pure encryption
  • Public authorities and schools with sovereignty requirements

Choose Tuta (Tutanota) if…

  • Privacy-conscious private users
  • Small teams with high encryption needs
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Scores are editorial orientation, not legal advice. Details are based on public provider information and are not independently verified.