Encrypted email inbox with calendar support, tasks, notes, bulk import, search features, key storage, encrypted cloud storage, file sharing.
Cost / License
- Freemium
- Proprietary
Platforms
- Online
- Android
- iPhone
Posteo Alternatives
One of the most popular alternatives to Posteo is Proton Mail, which is open source with a free version. Other popular alternatives are Gmail, Tuta Mail, Google Calendar and Proton Calendar. You're spoiled for choice with WebMail Providers like Posteo: we list more than 50 alternatives for Android, iPhone, iPad, Mac and Windows.
Alternatives list
eclipso Mail & Cloud is an complete and secure e-mail system from Germany with many useful and practical functions: Antispam, unlimited email folders, webmail, mobile app, Postoffice, fax and cloud storage. and many more.
Cost / License
- Freemium
- Proprietary
Application type
Platforms
- Mac
- Windows
- Online
- Android
- iPhone
- Android Tablet
- iPad
Germany
EU
+1
35 Titan Email alternativesTitan is the first business email suite that helps you build deeper, more meaningful relationships with your customers.
Cost / License
- Paid
- Proprietary
Platforms
- Online
United States
+1
Operated exclusively from Switzerland Swissmail ensures exceptional privacy and data protection. Data stored within Switzerland is safeguarded by strong legal frameworks, protecting sensitive communications from unauthorized access and foreign interference.
Cost / License
- Paid
- Proprietary
Application type
Platforms
- Online
Providing HIPAA-compliant email, secure email & web services since 1999. Secure communications via email, text, chat, video, and web.
Cost / License
- Paid
- Proprietary
Platforms
- Mac
- Windows
- Online
- Self-Hosted
StayPrivate email encryption ensures that important emails, files and notes stay secure, stay compliant and stay private.
Cost / License
- Free Personal
- Proprietary
Platforms
- Android
- iPhone
- iPad
- Software as a Service (SaaS)
United Kingdom
+3
44 CounterMail alternativesCountermail is a web-based email service. It is hosted in Sweden. Its focus is on privacy. It provides several features, such as PGP support and diskless servers to protect users ability to communicate securely and anonymously.
Cost / License
- Paid
- Proprietary
Application type
Platforms
- Online
Sweden- EU
+3
PolarisMail is a dedicated e-mail services provider based in Montreal, Quebec, Canada. It offers various paid-for email hosting packages, some of which come with basic functions and others with additional features, such as calendaring and more.
Cost / License
- Paid
- Proprietary
Application type
Platforms
- Online
Canada
Permanent and temporary email accounts with Webmail, IMAP, POP3, and API for registrations, incoming messages, codes, and automation.
Cost / License
- Paid
- Proprietary
Platforms
- Online
Russia
Cost / License
- Freemium
- Open Source
Application type
Platforms
- Online
- Android
- iPhone
+1
The Gmail you love, now lighter and just as fast. Enjoy a smart inbox that keeps your messages safe and you organized. Receive notifications when mail arrives, then read and respond both online & offline. Plus, find messages quickly with powerful search and lots more.
Cost / License
- Free
- Proprietary
Application type
Platforms
- Android
- United States
Private secure email. Ad free, spam free and encrypted. Topmail's email service is both secure and easy to use. It is available both on the desktop and via any mobile device.
Cost / License
- Paid
- Proprietary
Platforms
- Online
- Android
- iPhone
- Android Tablet
- iPad
- United Kingdom
Switzerland
