Every European email client app reviewed
Prague, Czech Republic
Free: 0 € (home use, 1 device, 2 email accounts). Personal: 49,95 € per year or 74,95 € one-time. Business: 59,95 € per year or 89,95 € one-time, per device
Demo on request
Best for: Windows and Mac users who want a full desktop client and prefer a one-time price
eM Client is a desktop email program from eM Client s.r.o. in Prague that combines mail, calendar, contacts, tasks and notes in one window. The sidebar holds an AI Assistant, and snooze and quick actions are built in. Paid plans allow unlimited accounts, and apps are listed for Windows, macOS, Android and iOS.
Pricing is the unusual part. Home use is free on one device with two accounts, Personal runs 49,95 € a year or 74,95 € one-time, and Business 59,95 € a year or 89,95 € one-time per device. The terms print company name, address and register number. A trial and a money-back guarantee, both 30 days, are listed. No data location is given.
What eM Client does well
- Entity, address and register number sit in the published terms
- Free home licence covers 2 accounts
- Lifetime upgrades come with the one-time licence
- Calendar, contacts, tasks and notes share one app
- A 30-day trial plus a 30-day money-back guarantee
Where eM Client falls short
- The free licence stops at 1 device and 2 accounts
- Only the yearly plans list the AI Add-on as included
- Where mail data lives is not spelled out on the pages we read
- No per-member team pricing like Superhuman's plans
Standout feature. eM Client is the only app in this category with a free home licence and a one-time business licence at once.
Dublin, Ireland
not shown on the pages we read (Teams prices are listed exclusive of VAT according to the terms)
Demo on request
Best for: Individuals and small teams who want a Superhuman-style smart inbox from an Irish company
Spark is an email app made by Spark Mail Limited, a company registered in Dublin under number 630281 with an Irish VAT ID. Its menu lists Smart Inbox, Gatekeeper, snooze, send later, follow-up reminders, signatures and Teams, as well as an AI assistant and calendar and meeting notes. A Windows version is listed beside the Apple apps.
Irish law governs the terms, with the Republic of Ireland's courts handling disputes. Spark's site claims over 21 million users and an Apple Editors' Choice mention; we checked neither. What we could not find is a price, a hosting location or the name of the final owner. Teams prices exclude VAT.
What Spark does well
- Entity, address, register number and VAT ID published in the terms
- Smart Inbox, Gatekeeper, snooze, send later and follow-up reminders listed
- Teams subscriptions for shared use
- Terms governed by Irish law with Irish courts
- A Windows version is listed beside the Apple apps
Where Spark falls short
- No price appears on the pages we read
- Hosting location is missing from the pages we read
- Who ultimately owns Spark Mail Limited is not stated
- Teams plans are quoted without VAT
Standout feature. Spark is the app in this category whose feature menu is closest to a triage-first inbox.
Berlin, Germany
14-day free trial. Starter 3 € per user per month on yearly billing (4 € monthly); Professional 6 € on yearly billing (8 € monthly), plus VAT
Demo on request
Best for: Teams that keep Apple Mail, Gmail or Outlook and want Superhuman-style follow-ups on top
Mailbutler is an extension from Mailbutler GmbH in Berlin that adds tracking, templates, mail merge, smart timing and an AI email assistant to Apple Mail, Gmail or Outlook. Email assignments, notes, tasks and signature marketing are part of the feature list as well.
The company publishes its entity, address and commercial register number, and states that its servers are in Frankfurt. A 14-day trial includes all features. Starter costs 3 € per user per month on yearly billing (4 € monthly) and Professional 6 € (8 € monthly), plus VAT. Because the price is per user, a team bill grows with headcount, and open and click tracking relies on pixels that some recipients block.
What Mailbutler does well
- Entity, address and commercial register number published
- Servers in Frankfurt, Germany, as stated on the site
- Free 14-day trial with all features
- Public euro prices from 3 € per user per month
- Works with Apple Mail, Gmail and Outlook
Where Mailbutler falls short
- Extension only, no standalone email app
- Depends on the mail client you already use
- Pricing is per user, so teams add up
- Tracking relies on pixels that some recipients block
Standout feature. Mailbutler is the only entry that adds follow-up features to Apple Mail, Gmail and Outlook with public euro prices.
Geneva, Switzerland
Founded 2014
Free tier / From €4.99/month
Demo on request
Best for: Privacy-conscious individuals and businesses seeking Gmail alternative
Proton Mail is an encrypted email service from Proton AG in Geneva, founded in 2014 by scientists who met at CERN. Zero-access encryption means Proton cannot read stored messages, and the clients are open source with published independent audits. Calendar, Drive and VPN come in the same account on paid plans.
Data centres are in Switzerland and Germany, and Swiss law applies under an EU adequacy decision. A free 500MB tier exists, with paid plans from €4.99 a month. Imports from Gmail carry folders and labels over. The catches are Bridge, the only IMAP route, which skips mobile, and on-device search that trails what a server can do.
What Proton Mail does well
- Zero-access encryption leaves Proton unable to read stored mail
- Swiss jurisdiction outside the EU and the Eyes alliances
- Open-source clients that have been audited independently
- Calendar, Drive and VPN come in one account
- Gmail import keeps folders and labels
Where Proton Mail falls short
- Third-party apps need Proton Mail Bridge, which has no mobile version
- The free tier holds 500MB where Gmail gives 15GB
- Mail search happens on the device, which makes it slower and less complete
- Switzerland relies on an adequacy decision instead of EEA processing
Standout feature. Proton Mail combines zero-access encryption with a Gmail import that keeps folders and labels.
Hanover, Germany
Founded 2011
Free tier (1GB) / From €3/month
Demo on request
Best for: Privacy-focused individuals seeking affordable encrypted email with calendar
Tuta is an encrypted email service from Tuta GmbH in Hanover, formerly Tutao GmbH, operating since 2011 and hosted in Germany. It encrypts subject lines, calendar and contacts as well as message bodies, and its clients are open source. Anonymous signup and custom domains are on the feature list.
Free accounts get 1GB; paid ones begin near €3 a month. The company has challenged surveillance legislation in court. Its restrictions are firm: IMAP, POP3 and SMTP are absent, PGP is not native, and no outside client can connect. Paid plans are required to search the full text of every message.
What Tuta does well
- Subject lines, calendar and contacts are encrypted along with message bodies
- Around €3/month is the lowest price for real end-to-end encryption here
- German company with open-source clients and servers in Germany
- Went to court against surveillance legislation
- The free tier gives 1GB, more than Proton's
Where Tuta falls short
- Only Tuta's own apps work: IMAP, POP3 and SMTP are not offered
- PGP is not native, so messages to other providers use passwords
- Searching the full text of all mail needs a paid plan
- No outside mail client can open a Tuta mailbox on any platform
Standout feature. Tuta is the only service here that encrypts subject lines, calendar and contacts at around €3 a month.
Oslo, Norway
Founded 2015
Free
Demo on request
Best for: Power users seeking privacy and customization
Vivaldi is a web browser from Vivaldi Technologies AS in Oslo, founded in 2015 by Jon von Tetzchner, the former Opera chief executive. Mail, calendar and a feed reader are built into the browser, next to ad and tracker blocking at browser level. Its interface is configurable down to tab bar position and keyboard shortcuts.
Vivaldi costs nothing, and Norway belongs to the EEA without being in the EU. According to the company it neither tracks nor profiles users, and its income comes from search engine partnerships. Vivaldi is built on Chromium and is not fully open source. Mail is a side feature, so there is no team inbox or AI drafting, and the volume of settings can overwhelm new users.
What Vivaldi does well
- Ads and trackers are blocked in the browser itself
- Any search engine can be set as default
- The interface can be reshaped further than in other current browsers
- Mail, calendar and a feed reader come built in
- Norwegian EEA company that earns without a data business
Where Vivaldi falls short
- It is a browser, not a search engine
- Chromium underneath means the same engine as most rivals
- Parts of the code are not open source
- New users face a very large settings menu
Standout feature. Vivaldi is the only entry in this category that ships mail inside a free browser.
Dordrecht, Netherlands
not shown on the pages we read
Demo on request
Best for: Android users who want a private, open-source client for any IMAP provider
FairEmail is an Android email client from FairCode B.V. in Dordrecht, Netherlands, whose privacy policy names the entity, address and managing director. It supports unlimited accounts in a unified inbox, conversation threading, two-way sync and offline storage, plus OpenPGP and S/MIME.
Per its own site the code is 100% open source, and opt-in error reports are the only data sent to the developer. Messages stay on the phone and with your own provider. FairEmail runs on Android only, does not support Exchange Web Services or ActiveSync, and is deliberately minimal, with no AI drafting or team workspace. The price and licence model are not shown on the pages we read.
What FairEmail does well
- The site states the app is 100% open source
- Privacy policy names the entity, address and managing director
- Nothing reaches the developer apart from opt-in error reports
- OpenPGP and S/MIME are both supported
- Any number of accounts feed one unified inbox
Where FairEmail falls short
- Android is the only platform
- Exchange Web Services and ActiveSync are not supported
- Neither price nor licence model shows on the pages we read
- Plain design with no AI drafting or team workspace
Standout feature. FairEmail is the only client here that is stated to send nothing to its developer beyond opt-in error reports.
Barcelona, Spain
see website (plan prices did not render in the text we read; VAT is included in the prices according to the terms)
Demo on request
Best for: Gmail users who mainly want Superhuman's read statuses and reminders
Mailtrack is an email tracking add-on from MAILSUITE S.L. in Barcelona. It lists unlimited email tracking, follow-up reminders, analytics, mass email with mail merge, templates, video messages, document tracking and a CRM for Gmail. It comes as a Chrome extension, mobile app, Gmail add-on and Outlook add-in.
Mailtrack's terms identify the Spanish company, give a Barcelona address and choose Spanish law with Barcelona courts. Prices include VAT according to those terms, yet the plan figures were blank in the text we read, and no data location is given. With no client of its own there is no snooze or split inbox, and recipients can block the tracking pixels.
What Mailtrack does well
- Legal entity and Barcelona address published in the terms
- Unlimited email tracking listed
- Follow-up reminders, mail merge and templates
- Works as Chrome extension, mobile app, Gmail add-on and Outlook add-in
- Spanish law and Barcelona courts in the terms
Where Mailtrack falls short
- It adds to a client and does not replace one
- Plan prices are missing from the text we read
- The pages we read leave the data location open
- Recipients who block tracking pixels hide the read status
Standout feature. Mailtrack is the only entry here that treats read tracking as the whole product.
Labège (Toulouse area), France
not shown on the pages we read (demo on request)
Demo on request
Best for: Organisations that want a sovereign, open-source mail platform that users reach through Outlook, web or mobile
BlueMind is a messaging platform from BlueMind SAS, based in Labège near Toulouse. It combines mail, calendar and a contacts app, and users reach it through Outlook, Thunderbird, a web client or mobile. The company publishes its register number, capital and address.
BlueMind's software is open source, and its site addresses the public sector and large organisations. Digital Crisis, a separate product, provides emergency messaging during cyber incidents. A demo request replaces a price list. Snooze and AI drafting go undescribed, as does the hosting model.
What BlueMind does well
- French SAS with register number, capital and address published
- Open-source messaging software
- Natively compatible with Outlook and Thunderbird
- Pages for the public sector and large organisations
- Emergency messaging product for cyber incidents
Where BlueMind falls short
- Built for organisations rather than single users
- Prices are absent from the pages we read
- Snooze and AI drafting are not described
- The pages we read say nothing on the hosting model
Standout feature. BlueMind is the only platform here with a separate emergency messaging product for cyber incidents.
Cologne, Germany
not shown on the pages we read (contact sales, demo)
Demo on request
Best for: Organisations and providers that need a sovereign webmail platform at scale
Open-Xchange is a webmail and productivity vendor from Open-Xchange AG in Cologne. Its OX App Suite delivers webmail, and the range includes Dovecot Pro and PowerDNS for operators. The pages we read cite email transition work for telecoms and public sector deployments.
The company publishes its register number, VAT ID and management, and states open source technologies as its base. It is not sold to individuals: no self-service plan, price or trial appeared on the pages we read, and the company's ownership is not stated. Snooze and AI drafting are not described. Users usually reach OX through a provider that runs it.
What Open-Xchange does well
- German AG with register number, VAT ID and management published
- Open source technologies as a stated base
- Public sector and sovereignty focus
- Includes Dovecot Pro and PowerDNS for operators
- Described as an alternative to Gmail and Outlook
Where Open-Xchange falls short
- No direct sales to individuals
- The pages we read show no prices
- Snooze and AI drafting are not described
- Who owns the company is not stated
Standout feature. Open-Xchange is the only vendor here that supplies the mail server, DNS and webmail layers to operators.
Romania (29 Academiei Str), Romania
not shown on the pages we read (free trial, online purchase and quote options exist)
Demo on request
Best for: Providers, IT teams and businesses that want to run their own mail with web and mobile clients
Axigen is a mail server from Axigen Messaging SRL in Romania. The product line includes WebMail, iOS and Android apps, an Outlook Connector, WebAdmin and white-label hosting for providers. The company publishes its address and VAT ID and shows a Made in the EU label on the home page.
Businesses can run a free mail server edition, and a trial, online purchase and quotes are all mentioned. The site cites GDPR and Romanian data protection law. Axigen is infrastructure, not an inbox app: no prices appear on the pages we read, snooze and split inbox are not described, and the storage location depends on where it is installed.
What Axigen does well
- Romanian SRL with address and VAT ID published
- Made in the EU label on the home page
- WebMail, iOS and Android apps and Outlook Connector
- Free mail server option for businesses
- GDPR and Romanian data protection law cited
Where Axigen falls short
- It is a server product and not an inbox app
- The pages we read show no prices
- Superhuman-style speed features are not described
- Mail storage location is not stated on the pages we read
Standout feature. Axigen is the only entry whose product is the mail server that other providers white-label.
