Email with encryption: What’s the difference between corporate and regular encryption


Most email services justifiably claim that their messages are tamper-proof. However, they leave out one important detail: they are talking about the encryption system in use during transmission. That is, there is no end-to-end encryption in popular TLS-protocol. It can only be a corporate solution or an end-to-end encryption protocol. A detailed guide on email with encryption was developed by Reply specialists. They also explain in detail how to use end-to-end and “transport” encryption technology. However, it is important not only to find out how such systems work, but also how to use them and how to provide a complete and most secure channel of business communication.

End-to-end encryption: How does it work?

End-to-end encryption ensures that emails are encrypted by the sender. And they can only be decrypted by the intended recipient on their device. There is one important feature of end-to-end encryption:

  • end-to-end encrypted emails are protected at every stage of delivery;
  • not even email servers can open or scan their content;
  • it is very difficult for cybercriminals to compromise confidential information or attachments in end-to-end encrypted emails.

Therefore, end-to-end encryption is so important for businesses and organizations. The content of emails will not be exposed, even after an attempt is made to interfere with the receiving and receiving system itself.

Features of end-to-end encryption in public email services

TLS encryption, as we know, can only protect against attempts to break into the system while the message is traveling from sender to recipient. But there is powerful end-to-end encryption even in common free email services like Gmail and others. This is S/MIME encryption. 

For S/MIME encryption to work, you need to buy a paid Gmail account and follow the setup instructions. It’s important to note that the recipient and sender must have the same protocols set up. That is, you can’t send an end-to-end encrypted email if the recipient doesn’t have the same decryption system.

There are other encryption methods, such as the PGP protocol and others. Their main advantage is the availability of different options, private and public keys for transmitting data and their decryption with the recipient’s individualization of the information.

Note that the settings of such protocols are quite complex, and a mistake or flaw in the configuration can lead to a loss of integrity and the necessary strength of electronic security.

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