AltCatalog
Catalog Email services mailbox.org

Alternatives to mailbox.org

Privacy-focused German mail and office

Alt Score

Alt Score · 74

How this alternative ranks. How it works →

Verified coverage 90%71
Visibility 10%100

Verified coverage = sourced yes and partial answers in the category checklist. Visibility = relative app-page views on AltCatalog over 30 days, neutral below 500 category views. Payment, votes, and vendor opinions are never score inputs.

#4 of 12 in Email services

mailbox.org ranks #4 of 12 in Email services, with an Alt Score of 74. It is proprietary, sold by subscription from €1/month and available on Web, iOS and Android. 10 of 12 checklist rows are verified against a public source.

Most compared with Proton MailTutaPosteo
Official site Suggest an edit Data history Work on mailbox.org? Claim this page
Who it's for

Privacy-conscious individuals, families, freelancers, and businesses (including public-sector organizations) in Europe who want an ad-free, encrypted alternative to mainstream email and cloud providers.

What you get

An integrated email and office suite: ad-free encrypted email (PGP, S/MIME, TLS) with custom domains and disposable addresses, shared calendar and contacts, Drive cloud storage, video conferencing (Meet), and collaborative documents (Office). Data is hosted on the provider's own servers in certified German data centers under GDPR, with no tracking or data selling. Family/business plans let multiple users share calendars, contacts, and storage while keeping separate inboxes.

How it works

Users sign up on mailbox.org, choose a plan tier (Light, Standard, or Premium, with a 30-day free trial), and optionally migrate existing email from another provider. They then access mail, calendar, drive, meet, and office tools through a single unified web login (or standard email/calendar clients via IMAP/CalDAV).

Why people leave mailbox.org

Dashed reasons are sourced facts; the rest are opinions. Vendors can dispute.

Sign in to add a reason — new reasons go through moderation before appearing.

Ranked alternatives

Ordered by Alt Score. Click any score to see the breakdown.

Sponsored Paid slot. Never affects the ranked order below. Promote here →
01

E2E encrypted email from Switzerland.

GPL-3.0 WindowsmacOSLinuxiOS +2
Alt Score

Alt Score · 96

How this alternative ranks. How it works →

Verified coverage 90%96
Visibility 10%100

Verified coverage = sourced yes and partial answers in the category checklist. Visibility = relative app-page views on AltCatalog over 30 days, neutral below 500 category views. Payment, votes, and vendor opinions are never score inputs.

02

Encrypted German mail with quantum-safe crypto.

GPL-3.0 WindowsmacOSLinuxiOS +2
Alt Score

Alt Score · 93

How this alternative ranks. How it works →

Verified coverage 90%92
Visibility 10%100

Verified coverage = sourced yes and partial answers in the category checklist. Visibility = relative app-page views on AltCatalog over 30 days, neutral below 500 category views. Payment, votes, and vendor opinions are never score inputs.

03

Green, anonymous German mail for €1/month.

Web
Alt Score

Alt Score · 74

How this alternative ranks. How it works →

Verified coverage 90%71
Visibility 10%100

Verified coverage = sourced yes and partial answers in the category checklist. Visibility = relative app-page views on AltCatalog over 30 days, neutral below 500 category views. Payment, votes, and vendor opinions are never score inputs.

04

Business mail with a real free tier.

Proprietary WebiOSAndroid
Alt Score

Alt Score · 70

How this alternative ranks. How it works →

Verified coverage 90%67
Visibility 10%100

Verified coverage = sourced yes and partial answers in the category checklist. Visibility = relative app-page views on AltCatalog over 30 days, neutral below 500 category views. Payment, votes, and vendor opinions are never score inputs.

05

Fast independent email with masked addresses.

Proprietary WindowsmacOSLinuxiOS +2
Alt Score

Alt Score · 66

How this alternative ranks. How it works →

Verified coverage 90%62
Visibility 10%100

Verified coverage = sourced yes and partial answers in the category checklist. Visibility = relative app-page views on AltCatalog over 30 days, neutral below 500 category views. Payment, votes, and vendor opinions are never score inputs.

06

Apple's mail with Hide My Email.

Proprietary WebiOSmacOS
Alt Score

Alt Score · 59

How this alternative ranks. How it works →

Verified coverage 90%54
Visibility 10%100

Verified coverage = sourced yes and partial answers in the category checklist. Visibility = relative app-page views on AltCatalog over 30 days, neutral below 500 category views. Payment, votes, and vendor opinions are never score inputs.

07

Domain-based email priced by usage, not mailboxes.

Proprietary Web
Alt Score

Alt Score · 59

How this alternative ranks. How it works →

Verified coverage 90%54
Visibility 10%100

Verified coverage = sourced yes and partial answers in the category checklist. Visibility = relative app-page views on AltCatalog over 30 days, neutral below 500 category views. Payment, votes, and vendor opinions are never score inputs.

08

Microsoft's consumer mail service.

Proprietary WindowsmacOSiOSAndroid +1
Alt Score

Alt Score · 59

How this alternative ranks. How it works →

Verified coverage 90%54
Visibility 10%100

Verified coverage = sourced yes and partial answers in the category checklist. Visibility = relative app-page views on AltCatalog over 30 days, neutral below 500 category views. Payment, votes, and vendor opinions are never score inputs.

09

Private email with unlimited aliases from Startpage.

Proprietary Web
Alt Score

Alt Score · 59

How this alternative ranks. How it works →

Verified coverage 90%54
Visibility 10%100

Verified coverage = sourced yes and partial answers in the category checklist. Visibility = relative app-page views on AltCatalog over 30 days, neutral below 500 category views. Payment, votes, and vendor opinions are never score inputs.

10
Hey

Opinionated email workflow from 37signals.

Proprietary WebmacOSWindowsLinux +2
Alt Score

Alt Score · 51

How this alternative ranks. How it works →

Verified coverage 90%46
Visibility 10%100

Verified coverage = sourced yes and partial answers in the category checklist. Visibility = relative app-page views on AltCatalog over 30 days, neutral below 500 category views. Payment, votes, and vendor opinions are never score inputs.

11

Google's free mail with the best search.

Proprietary WebiOSAndroid
Alt Score

Alt Score · 48

How this alternative ranks. How it works →

Verified coverage 90%42
Visibility 10%100

Verified coverage = sourced yes and partial answers in the category checklist. Visibility = relative app-page views on AltCatalog over 30 days, neutral below 500 category views. Payment, votes, and vendor opinions are never score inputs.

Feature comparison

Rows come from the Email services checklist (16 rows). Human-verified cells only. ? means the value has not been verified.

Comparing mailbox.org Proton Mail × Tuta × Posteo × Zoho Mail × Fastmail ×
+ Add app
Gmail Hey iCloud Mail Migadu Outlook.com StartMail
Email services checklist mailbox.orgProton MailTutaPosteoZoho MailFastmail
Pricing model
Starts at
License
Platforms
E2E encryption
Custom domain support
Storage (free tier)
Aliases included
Calendar & contacts
IMAP/SMTP access
Jurisdiction
Independent audit published
Catch-all addresses
Ad-free
Import from competitors
Anonymous signup
verified pending unknown (?) Click any cell to view its source or propose a value
Sources & verification 15

Every fact and feature listed for mailbox.org is verified against its own pages. Each alternative is sourced on its own page.

FAQ

Yes. Proton Mail, Tuta and Zoho Mail have a free tier or are fully free. Free-tier limits in the comparison table are verified and dated.

Proton Mail and Tuta — every license claim links its source.