whats-best.ai

Business Email & Office Suites · head-to-head

mailbox.org Business vs Tuta Business

As of 6 Nov 2026, the panel rates mailbox.org Business 3/5 and Tuta Business 3/5 in Business Email & Office Suites. Weighted by what each judge cares about, 5 of the 6 judges pick mailbox.org Business and 1 picks Tuta Business. mailbox.org Business scores higher on 4 of 7 criteria (Calendar, contacts & office apps, Migration, open standards & exit, Administration, identity & partner management, plus 1 more). Tuta Business scores higher on 3 of 7 criteria (European sovereignty, Security, encryption & compliance archiving and Pricing transparency). Provenance — mailbox.org Business: EU-Made; Tuta Business: EU-Made. Ratings are the AI panel’s opinion, formed from public evidence: how scores are made.

mailbox.org Business

EU-Made

Panel rating

Sovereignty: not determined

Full evaluation →

Tuta Business

EU-Made

Panel rating

Sovereignty: not determined

Full evaluation →

The short answer

mailbox.org Business leads four criteria — mail and deliverability (5.5 vs 5.0; four lean), calendar and office (5.5 vs 4.0; five lean), administration and identity (5.3 vs 4.2; five lean), migration and portability (5.0 vs 3.8; five lean). Tuta Business leads sovereignty (8.2 vs 6.0; five lean, one tie), security and compliance (7.0 vs 5.7; two lean, four tie) and, on mean, pricing transparency (6.5 vs 5.8; leans split two mailbox.org Business, one Tuta Business, three tie). Weighted totals favor mailbox.org Business for the IT administrator (6.3 vs 5.3), public-sector IT lead (6.8 vs 5.5), IT service provider (6.8 vs 5.2), skeptic (6.4 vs 5.7); the data protection officer totals 5.7 for Tuta Business against 0; the small-firm owner shows no total. Both carry the same EU made provenance, and each recorded sovereignty attribute — legal entity jurisdiction, data residency, hosting options, open source, DPA, TIA — reads "unknown."

Choose mailbox.org Business if

  • You need IMAP or POP3 access for desktop clients: four of six judges lean mailbox.org Business on mail and deliverability (5.5 vs 5.0), and the Tuta Business verdict records a vendor-stated absence of IMAP and a 100 emails-per-hour cap.
  • Your team wants calendar, browser office editing, drive and video meetings in one bundle: calendar and office scores 5.5 vs 4.0 with five judges leaning mailbox.org Business, and the Tuta Business verdict found no public information on document co-editing.
  • You are moving accounts from Gmail, Outlook.com or T-Online: migration and portability leans mailbox.org Business five to one (5.0 vs 3.8), and the published Audriga list names those sources.
  • You are a public-sector IT lead or IT service provider: those weighted totals read 6.8 vs 5.5 and 6.8 vs 5.2 for mailbox.org Business.
  • Your priorities match the IT administrator's or the skeptic's: those weighted totals read 6.3 vs 5.3 and 6.4 vs 5.7.

Choose Tuta Business if

  • You need end-to-end encryption the vendor states even it cannot read: security and compliance scores 7.0 vs 5.7, with two judges leaning Tuta Business and four tied, crediting quantum-safe encryption.
  • Sovereignty is your deciding criterion: Tuta Business scores 8.2 vs 6.0, five judges lean its way with one tie, and the verdict credits hosting on its own servers in ISO 27001 certified data centres in Germany.
  • Your compliance file needs a published data processing agreement and a named SySS penetration test, both recorded in the Tuta Business verdict.
  • Your data protection officer holds the deciding vote: that judge's weighted total reads 5.7 for Tuta Business against 0 for mailbox.org Business, whose verdict records that judge's scores as 0 on the same seven criteria.

Read this comparison as one judge. Each weighs the same scores by what they care about.

The bench's picks

Same scores, different priorities: each judge's weighting applied to both products. The split is the finding.

Criterion by criterion

mailbox.org Business Tuta Business Bench average per criterion. Each label leads to its row in the table.
Scores per criterion, in stars out of 5
Criterion mailbox.org Business Tuta Business
Mail, domains & deliverability 3 of 5 2.5 of 5
Calendar, contacts & office apps 3 of 5 2 of 5
Security, encryption & compliance archiving 3 of 5 3.5 of 5
Administration, identity & partner management 2.5 of 5 2 of 5
Migration, open standards & exit 2.5 of 5 2 of 5
European sovereignty 3 of 5 4 of 5
Pricing transparency 3 of 5 3.5 of 5
Criterion mailbox.org Business Tuta Business The bench leans
Mail, domains & deliverability mailbox.org Business, 4 of 6 judges
Calendar, contacts & office apps mailbox.org Business, 5 of 6 judges
Security, encryption & compliance archiving Tuta Business, 2 of 6 judges
Administration, identity & partner management mailbox.org Business, 5 of 6 judges
Migration, open standards & exit mailbox.org Business, 5 of 6 judges
European sovereignty Tuta Business, 5 of 6 judges
Pricing transparency mailbox.org Business, 2 of 6 judges

Stars show the bench average per criterion; the lean counts which product each judge scored higher. Open a judge's tab for their reasoning on both sides.

Sovereignty, side by side

Dimension mailbox.org Business Tuta Business
Legal entity Not determined Not determined
Hosting location Not determined Not determined
Hosting options Not determined Not determined
Open source Not determined Not determined
Data processing agreement Not determined Not determined
Transfer impact assessment Not determined Not determined

Facts, side by side

Only facts both products carry under the same definition — anything else would not be a fair row.

Compliance · GDPR yes1

captured 5 Nov 2026 · Report an error

yes · yes2

captured 5 Nov 2026 · Report an error

Hosting · Server location Berlin · yes · Germany3

captured 5 Nov 2026 · Report an error

Germany · German privacy protection laws · ISO270014

captured 5 Nov 2026 · Report an error

Legal · Controller Heinlein Hosting GmbH · Schwedter Straße 8/9B, 10119 Berlin, Deutschland5

captured 5 Nov 2026 · Report an error

Tutao GmbH6

captured 5 Nov 2026 · Report an error

Legal · VAT id DE3351254237

captured 5 Nov 2026 · Report an error

DE2809032658

captured 5 Nov 2026 · Report an error

Product · Catch all yes9

captured 5 Nov 2026 · Report an error

yes10

captured 5 Nov 2026 · Report an error

Product · Encryption yes · yes1

captured 5 Nov 2026 · Report an error

yes · yes · yes2

captured 5 Nov 2026 · Report an error

Product · Modules Mail · Drive · Meet · Office · Admin7

captured 5 Nov 2026 · Report an error

Tuta Mail · Tuta Calendar · Tuta Drive11

captured 5 Nov 2026 · Report an error

Product · Two factor auth yes · yes3

captured 5 Nov 2026 · Report an error

yes · yes · U2F12

captured 5 Nov 2026 · Report an error

Questions about mailbox.org Business and Tuta Business

Which is better, mailbox.org Business or Tuta Business?

As of 6 Nov 2026, the panel rates both 3/5. Weighted by what each judge cares about, 5 of the 6 judges pick mailbox.org Business and 1 picks Tuta Business. Which one fits depends on the criteria that matter to you; the table on this page shows both side by side, and each judge’s reading has its own page. Both were scored by the same AI bench under the same rubric, from public evidence only, as the methodology describes.

Is mailbox.org Business or Tuta Business European?

mailbox.org Business is European (EU-Made). Tuta Business is European (EU-Made). Provenance is read from each company’s own legal pages: who builds it and who owns it.

Where do mailbox.org Business and Tuta Business store customer data?

Per the vendors’ own pages as captured — mailbox.org Business: Default not stated; pages mention Germany. Tuta Business: Default not stated; pages mention Germany.

Do mailbox.org Business and Tuta Business have a free plan?

As of 6 Nov 2026, Tuta Business’s own pages state a free plan; mailbox.org Business’s pages as captured do not. Each product page links the pricing page it was read from.