Runbox

(Official description) Runbox provides secure email communication with Perfect Forward Secrecy SSL connections, Extended Validation, and options for...

Commercial

(official description) runbox provides secure email communication with perfect forward secrecy ssl connections, extended validation, and options for openpgp encryption.

we are committed to protecting your data in accordance with norway's strong privacy regulations, preventing unauthorized access to your email.

Links to official Runbox sites

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The Best 37 Runbox Alternatives

301 Like

ProtonMail

Secure email with absolutely no compromises, brought to you by MIT and CERN scientists. Swiss Based ProtonMail is incorporated in Switzerland and our servers are located in Switzerland.

Freemium

Privacy focused Privacy protection Multiple languages End to end encryption 4096 Bit encryption Anonymity Anonymous email Custom domain Encrypted Connection Encrypted email Mobile friendly Support for Multiple Users PGP Encryption Self destructing messages Very strong privacy
190 Like

Tutanota

Tutanota is a free and open source web-mail client that focuses on privacy. There's also an Android and an iOS app. All data is stored encrypted and can not be searched, i.e. for commercial usage.

Free Personal Android iPhone iPad Web

Privacy focused Privacy protection Share files Multiple Account support End to end encryption Anonymity Encrypted Connection Encrypted email Very strong privacy
98 Like

Mailpile

Mailpile is a modern, fast web-mail client with user-friendly encryption and privacy features.

Free Open Source Mac OS X Windows Linux Web Self-Hosted OpenPGP
56 Like

Enigmail

enigmail is a security extension to mozilla thunderbird and seamonkey. it enables you to write and receive email messages signed and/or encrypted with the openpgp standard.

Free Open Source Mac OS X Windows Linux Thunderbird SeaMonkey GnuPG
40 Like

Kolab Now

Kolab Now provides a suite of intuitive apps in a user friendly environment to make your day to day online comms easier, smarter and most importantly; secure.

Open Source Commercial Web DAVdroid

Real time collaboration CalDAV CardDAV
26 Like

Posteo

Web- and IMAP-based email service. 2GB cost 1€/month. Information is hosted on encrypted hard drives. Electricity from renewable resources is used.

Commercial

Privacy focused Privacy protection Security focused Built in Calendar Anonymity Encrypted email Encrypted mail and contacts
26 Like

Mailfence

Mailfence is a free secure and private mail service, that provides an end-to-end encrypted email.

Freemium

Privacy focused Multiple languages Custom domain Encrypted email CalDAV CardDAV Encrypted end to end
25 Like

Mailvelope

Mailvelope is a browser extension that allows to exchange encrypted emails following the OpenPGP encryption standard.

Free Open Source Mac OS X Windows Linux Chrome OS Chrome Firefox

Firefox extension Google Chrome extension
21 Like

Email.biz

Indian Webmail service allowing people to sign up for an @email.biz mail account. Cloud based Login and Multiple Login System give you safe and secure access to your POP / IMAP email accounts.

Free Web
18 Like

MsgSafe.io

MsgSafe.io provides private, encrypted, online communication with layers of security you can trust.

Freemium Android iPhone Web S/MIME OpenPGP

Privacy focused Integrated Spam Protection Encrypted chat End to end encryption Anonymity Encrypted email S/MIME support Email Analytics
13 Like

mailbox.org

mailbox.org offers a secure e-mail account for home and business use. The domain name, [email protected], is easy to remember and can be understood anywhere in the world.

Commercial Android iPhone Android Tablet iPad Web Kindle Fire Windows Mobile

Privacy focused Ad free Built in Calendar Encrypted email Two factor authentication Gpg encryption
10 Like

GPGMail

gpgmail is an open source plugin for apple mail. it brings the functionality to sign, verify, encrypt and decrypt mails using the openpgp standard.

Free Open Source Mac OS X GPGTools
10 Like

FlowCrypt

FlowCrypt (formerly CryptUp) is the easiest PGP encryption for Gmail. It behaves just like standard email, except it's encrypted.

Freemium Mac OS X Windows Linux Android Chrome OS Web Chrome Firefox

Firefox extension Gmail integration Google Chrome extension End to end encryption Encrypted email Public key encryption
9 Like

PEPS

PEPS is an open source secure email and file sharing platform.

Free Open Source Linux
9 Like

SCRYPTmail

SCRYPTmail is true end-to-end encrypted email service. Email and meta data, i.e sender / recipient are encrypted when you communicate within scryptmail domain.

Freemium Web

End to end encryption Anonymity Encrypted email
7 Like

Secure Gmail

An extension to send secure, encrypted messages through Gmail. SecureGmail encrypts and decrypts emails you send in Gmail. This happens all on your machine, and the unencrypted text never reaches Google servers.

Free Open Source Mac OS X Windows Linux Chrome Gmail
5 Like

CounterMail

Countermail 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.

Commercial Web
5 Like

Sfletter

You can send a protected attachment (PDF, JPEG) and a message to any email service that is available on Windows.

Free Personal Windows
4 Like

Lockbin

Lockbin is a web application for sending private email messages and files. People use it to send things like credit card numbers or confidential information.

Freemium Mac OS X Windows Linux Android Android Tablet
3 Like

Fripost

Fripost – the Free Email Association. Fripost organize the people who want an alternative to "free" e-mail services where you are constantly under surveillance and personal data is handed over to third parties.

Open Source Commercial Web

Privacy protection Ad free

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Runbox

Links to official Runbox sites

Features

Categories

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The Best 37 Runbox Alternatives

ProtonMail

Tutanota

Mailpile

Enigmail

Kolab Now

Posteo

Mailfence

Mailvelope

Email.biz

MsgSafe.io

mailbox.org

GPGMail

FlowCrypt

PEPS

SCRYPTmail

Secure Gmail

CounterMail

Sfletter

Lockbin

Fripost

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