Easy to use, provides peace of mind
Send encrypted email with the Chrome Secure Mail extension
If you use Gmail, you already have built-in encryption as your email travels across Google servers. Gmail uses S/MIME to support enhanced encryption, and it will also encrypt your outgoing emails when possible. However, Gmail’s encryption doesn’t protect your email once it reaches its destination, and that limitation is a serious one.
If you regularly send and receive sensitive emails through the Gmail system, you may want to consider beefing up your encryption. Fortunately, there are a number of free plugins available that can help you secure every message you send.
Some require you to share a password, while others on the other hand decrypt without a password. You also have the option of an encryption tool that prevents the email from being stored on mail servers.