These services use encryption to keep your messages private.
An encrypted email account protects your privacy.
ProtonMail
Two-factor authentication.
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Send password-protected messages to anyone.
Import CSV contact lists.
Free users get the same attachment size limit as paid users.
Occasionally sluggish web interface.
Cumbersome integration with other email clients.
ProtonMail is a free, open-source, encrypted email provider based in Switzerland.
It works from any computer through the ProtonMail website and also through Android and iOS mobile apps.
ProtonMail is so secure that it can’t recover your emails if you forget your password.
ProtonMail also doesn’t keep yourIP addressinformation.
With a no-log email service like ProtonMail, emails can’t be traced back to you.
The free version of ProtonMail supports 1GB of email storage and limits usage to 150 messages per day.
you could use the desktop app for free, but only during the two-week trial.
Business plans are also available for organizations.
Tuta
Apps for iOS and Android.
Includes 1 GB of storage space.
Alias addresses only available to paid accounts.
Doesn’t support IMAP.
Can’t import contacts in bulk.
Tuta is similar to ProtonMail in its design and security level.
All Tuta emails are encrypted from the sender to the receiver and decrypted on the rig.
The private encryption key isn’t accessible to anyone else.
This email account is all that’s needed to exchange secure emails with other Tuta users.
That interface allows them to reply securely, too.
Tuta uses AES and RSA for email encryption.
The servers are located in Germany, which means that German regulations apply.
Free accounts can create an email account using a Tuta domain, while paid plans can create custom domains.
Tuta domains are: @tutanota.com, @tutanota.de, @tutamail.com, @tuta.io, and @keemail.me.
Several features in this service are only available on paid plans.
Hushmail
Supports IMAP and POP.
Import contacts from a CSV file.
Spam filter and auto-responder.
Includes 10 GB of storage.
Free trial only for Healthcare plans.
Only available on iPhone.
Hushmail is an encrypted email service that’s been around since 1999.
It keeps emails secure and locked behind state-of-the-art encryption methods.
Not even Hushmail can read your messages; only someone with your password can do so.
There are several personal and business options when you sign up for Hushmail, but none are free.
Mailfence
Digital email signatures prove authorship.
Import contacts from Outlook, CSV files, Gmail, etc.
Calendar and file storage for documents.
Requires alternative email address for activation key.
Private keys kept on Mailfence servers.
The service includes an email address and web interface that incorporates OpenPGP public key encryption.
To make life even more difficult for hackers, here are a few more precautions:
