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What is Letterbox?

Who can access your emails? With traditional emails, you, the recipient, and all email service providers may have visibility into the contents, along with potential others. In contrast, end-to-end encryption restricts access solely to the sender and the intended recipients, ensuring greater privacy. The iOS app known as Letterbox enhances the end-to-end encryption experience, supporting a wide range of email services and employing the widely recognized OpenPGP encryption protocol. Although Letterbox operates like many other email applications, it specifically emphasizes the security status of both incoming and outgoing communications, empowering users to identify which emails are secure and which are not. Being a free and open-source email client for iOS, Letterbox aligns with an ongoing research project at Freie Universität Berlin. While it is still in development, users will soon have the chance to try the app on their devices via Apple's TestFlight platform, making secure communication increasingly available to the public. This development not only aims to improve user understanding of email security but also strives to maintain a seamless and intuitive user interface. As technology evolves, the importance of secure communication will only continue to grow.

What is CounterMail?

CounterMail is an email service designed with a strong emphasis on security while maintaining a user-friendly interface, striving to provide excellent privacy without burdening users with overly complex features. Users can conveniently access their email accounts from anywhere in the world at any time. The service ensures that your account remains both anonymous and consistently encrypted, which greatly enhances confidentiality. CounterMail's encryption operates automatically and effortlessly, so no advanced technical skills are needed on the user's part. If you appreciate the ease of use found in services like Hotmail or Gmail, it's likely you'll also enjoy the intuitive design of CounterMail's secure email platform. It employs a strong encryption method called OpenPGP, featuring 4096-bit encryption keys to protect your data. According to available information, there is currently no known method to breach OpenPGP encryption using cryptographic or computational techniques, which provides users with confidence about the safety of their data. This unwavering dedication to user privacy makes CounterMail an appealing option for those who prioritize safeguarding their online communications and personal information. Additionally, the seamless integration of security features into everyday use sets CounterMail apart in the realm of email services.

Media

Media

Integrations Supported

Additional information not provided

Integrations Supported

Additional information not provided

API Availability

Has API

API Availability

Has API

Pricing Information

Free
Free Trial Offered?
Free Version

Pricing Information

Pricing not provided.
Free Trial Offered?
Free Version

Supported Platforms

SaaS
Android
iPhone
iPad
Windows
Mac
On-Prem
Chromebook
Linux

Supported Platforms

SaaS
Android
iPhone
iPad
Windows
Mac
On-Prem
Chromebook
Linux

Customer Service / Support

Standard Support
24 Hour Support
Web-Based Support

Customer Service / Support

Standard Support
24 Hour Support
Web-Based Support

Training Options

Documentation Hub
Webinars
Online Training
On-Site Training

Training Options

Documentation Hub
Webinars
Online Training
On-Site Training

Company Facts

Organization Name

Letterbox

Company Location

Germany

Company Website

letterbox-app.org

Company Facts

Organization Name

CounterMail

Company Location

Sweden

Company Website

countermail.com

Categories and Features

Categories and Features

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