- Best email encryption software for individuals
- Open Source email encryption software
- Best email encryption software for enterprises
Open Source email encryption software
The best Open Source software for sending encrypting emails is OpenPGP. It is secure and anyone can use it with a little effort.
We would explain some simple steps using which one can easily send encrypted emails using OpenPGP. One can even use the same secret keys for encrypting files, folders and to digitally sign an document or email.
How to send encrypted emails using OpenPGP ?
PGP is a proprietary software created by Phil Zimmermann. OpenPGP is a standard based on PGP defined by Internet Engineer Task Force or IETF. GnuPG or GPG is an Open Source program based on OpenPGP under GPL License. So, GPG is available freely and one can install GPG in his system easily to use it for encryption.
Step 1: Install GPG
As said above, GPG is available freely. One can directly install it from the website and start using it. The steps for installation is described in the following article : How to install GPG ?
Step 2 : Create GPG key
One can follow the steps as mentioned here : How to generate GPG key ? One can also use tools like Kleopatra to manage creatiion of keys and encryption using GUI.
Step 3 : Import public key of recipient
Now, you can import public key of the recipient whom you want to send encrypted emails. This article explains how to do that How to generate GPG key and import public key of others ?
Step 4 : Install and Configure Thunderbird and Enigmail
In some OS Thunderbird comes preinstalled. Otherwose one can install it from the website. The following article explains how to install Thunderbird and Enigmail and how to send encrypted emails using your generated GPG key : How to send encrypted emails using GPG ?
You can use your generated GPG key for encrypting files, folders and to digitally sign documents or emails. You can find more information on PGP here : What is PGP or Pretty Good Privacy ?