Audience
Users that need a secure encrypted email app for iOS
About Letterbox
Who reads your mails? With regular mails you, the receiver, all mail providers and maybe others can read them. With end-to-end encrypted mails only the sender and the receivers can read them. Our iOS-App Letterbox makes end-to-end encryption easy to use, is compatible with most mail providers and supports the standard encryption protocol OpenPGP.
Letterbox is similar to common mail apps but indicates the security state of incoming and outgoing mails. We disinguish between a confidential and insecure mails.
Letterbox is a free open-source mail client on iOS and part of an ongoing research project at the Freie Universität Berlin, Germany. Letterbox is still under development but you can soon use the app on your device with Apple's TestFlight app.
Other Popular Alternatives & Related Software
Atomic Mail
Atomic Mail is a secure and user-centric email hosting provider, dedicated to offering privacy-first email services. With features such as alias creation, robust security measures, and seamless account recovery, AtomicMail ensures your email experience is both private and hassle-free.
Creation of Aliases (Hide-my-email): Maintain your privacy by creating multiple email aliases;
Spam Free, No Ads;
Email Password Protection;
End-to-End Encryption: only you and your intended recipient can read the message;
Zero Access Encryption: Atomic Mail cannot access your emails;
Account Recovery with Seed Phrase: Recover access to your account with a unique seed phrase. Can regain control of your email account without compromising security.
Learn more
ZixMail
ZixMail is the desktop email encryption solution that provides individuals with a high level of security in their email communications. It's an easy-to-use service that lets users encrypt and decrypt emails and attachments with a single click. Trusted by key figures in Government, Financial, Healthcare, and Legal fields, ZixMail is a unique Email Encryption application that differentiates itself from other solutions by focusing on both the sender and receiver experience. Combining best-in-class encryption technologies with easy to use interfaces, ZixMail is the perfect fit for your organization's email security needs.
Learn more
SalaX Secure Mail
SalaX Secure Mail is an easy-to-use and highly secure email encryption solution that can be embedded in your existing email services to protect confidential email communications. Verify all users (senders and recipients alike) with various authentication methods (including strong authentication bank ID, SMS OTP, mail OTP, and password). Ensure security with monitoring features, like audit trails and various reporting options. Protect your communications with end-to-end encryption, all the way from sender to recipient. Secure Mail supports various email security protocols (DMARC, DKIM, SPF) as well as S/MIME-based encryption. You are in control of your data, flexible deployment is possible in the cloud or on-premises. Secure Mail also offers multiple configuration options (APIs, web interfaces). Classify confidential data and adjust security levels according to your policies. Stay compliant with data privacy laws and regulations (e.g. GDPR) thanks to government-grade security.
Learn more
Mailpile
Mailpile is an effort to reclaim private communication on the Internet. A project to rescue our personal lives from the proprietary cloud and prevent our conversations from being strip-mined for corporate profit and government surveillance. Mailpile is taking e-mail back. Powerful search & tagging makes your pile of mail managable, whether you have just a few messages, thousands or even millions. Mailpile is designed to be fast and responsive, outperforming "the cloud" even on slow computers. And it works even when the Internet is down. OpenPGP signatures and encryption are part of Mailpile's core design, not an afterthought. Mailpile makes it easy to sign and encrypt your mail. It's ironic that most web-mail solutions filter out spam, only to replace it with their own advertisements. Mailpile has no ads.
Learn more
Pricing
Starting Price:
Free
Pricing Details:
Open source
Free Version:
Free Version available.
Integrations
No integrations listed.
Company Information
Letterbox
Germany
letterbox-app.org
Videos and Screen Captures
Other Useful Business Software
Our Free Plans just got better! | Auth0
You asked, we delivered! Auth0 is excited to expand our Free and Paid plans to include more options so you can focus on building, deploying, and scaling applications without having to worry about your security. Auth0 now, thank yourself later.
Product Details
Platforms Supported
iPhone
Training
Documentation
Support
Online
