Best Email Encryption Software

• Best email encryption software for individuals
  • How to encrypt Gmail and other emails using plugins and extensions ?
  • How to encrypt emails using PGP or GPG ?
  • How to send self destructing email ?
  • Best Secure Email Services
• Open Source email encryption software
• Best email encryption software for enterprises

Best Secure Email Services

There are a number of secure webmail providers. Many of them use end-to-end encryption which makes the encrypted communications more secure. These secure emails may prove to be a good option if you want to send encrypted message to someone.

1. ProtonMail

Features :

• ProtonMail uses end-to-end encryption. As a result, only the sender and recipient of the encrypted email can read it. Even the service provider does not have access to the secret keys using which the emails are encrypted.
• One can set emails to expire after certain length of time after which the email will become unreadable.
• ProtonMail uses PGP to encrypt messages.
• It does not support IMAP and POP.
• It is easy to use.

2. Hushmail

Features :

• Using Hushmail one can send encrypted emails to both Hushmail users and non-users.
• If the recipient is a Hushmail user, the email will be automatically encrypted and sent.
• If the recipient is not a Hushmail user, the sender can select a security question.
• The recipient will get a link in his inbox on clicking on which the recipient has to provide a secret passphrase. The user can use the same secret passphrase to read all encrypted messages sent by Hushmail. A first time user has to create a passphrase.
• On providing passphrase, the recipient will be asked to answer the security question set by the sender of the encrypted email following which he can read the email.
• Hushmail supports POP and IMAP.
• It also supports 2 Factor Authentication for better security.
• It includes a spam filter.
• One can also enable auto-responder.

3. Tutanota

Features :

• Tutanota is an Open Source Software under GPL License.
• It uses end-to-end encryption to send encrypted messages.
• One can send encrypted messages to Tutanota users as well as non-users.
• If a sender is sending an encrypted message to a Tutanota non-user, the sender would need to specify a password at the time of encryption and provide the password to the recipient using some different channel.
• The recipient would need to provide the password to decrypt and read the encrypted message.

4. Posteo

Features :

• Posteo provides 2 GB storage by default.
• It supports IMAP and POP3.
• It supports 2 Factor Authentication for better security.
• Attachment of up to 50 MB is supported.
• It provides spam filter and virus filter.
• It also supports forwarding and autoreply.

5. Mailfence

Features :

• Mailfence uses end-to-end encryption for encrypting emails.
• It is inter-oparable with any OpenPGP service.
• It provides the option of digitally signing an email, which can guarantee that only the authorized user has sent the email.
• It supports Web, POPS, IMAPS, SMTPS and mobile accesses.
• It also supports 2 Factor Authentication for better security.

6. Countermail

Features :

• It uses diskless web server to prevent IP-addresses leaking to a hard drive. Even if someone hacks the web server, they will not be able to get valuable private information like IP addresses.
• When a sender wants to send an encrypted message, he has to encrypt the message using OpenPGP public key of the recipient, so that the recipient can decrypt the message using her private key and read it.
• Countermail provides USB Key option.
• It is compatible with Android phone.
• It supports password manager.
• One can use one’s own domain name with Countermail.