Runbox
Runbox is a Norwegian email service with focus on security and privacy.
20 Alternatives To Runbox
Enigmail
Security extension to Mozilla Thunderbird and SeaMonkey
FastMail
Email, calendars, and contacts to highest standards of security, privacy and reliability.
Fripost
Fripost – the Free Email Association.
G Suite
Google’s encompassing suite of cloud-based business apps.
GPGMail
GPGMail is an open source plugin for Apple Mail.
Gmail
Gmail is available across all your devices Android, iOS, and desktop devices. Sort, collaborate or call a friend without leaving your inbox.
Hushmail
Full-featured email service with integrated security to safeguard your data.
Lavabit
Secure email for the world. Because everyone has the right to communicate privately.
Mailpile
Mailpile is a modern, fast web-mail client with user-friendly encryption and privacy features.
Mailvelope
Mailvelope open source project. OpenPGP in your browser.
Posteo
Web- and IMAP-based email service. 2GB cost 1€/month.
ProtonMail
Secure email with absolutely no compromises. Get your free encrypted email account today.
Riseup
Riseup provides online communication tools for people and groups working on liberatory social change. We are a project to create democratic alternatives and practice self-determination by controlling our own secure means of communications.
SCRYPTmail
End-to end encrypted email service with no stored metadata
Shazzlemail
ShazzleMail is the first privacy-protective and surveillance-resistant secure email service.
Tutanota
Get your encrypted mailbox for free.
Zoho Mail
Zoho Mail is a webmail service built with the needs of a modern business in mind.