Final answer:
The characteristic features of the secure version of IMAP (IMAPS) include encryption of data during transmission, authentication of the server, support for SSL/TLS protocols, and the ability to access emails offline.
Step-by-step explanation:
The characteristic features of the secure version of IMAP (IMAPS) include:
- Encryption of data during transmission: IMAPS encrypts the data being transmitted between the email client and the email server, ensuring that it cannot be accessed by unauthorized parties.
- Authentication of the server: IMAPS verifies the identity of the email server, preventing unauthorized servers from posing as the legitimate server.
- Support for SSL/TLS protocols: IMAPS uses SSL/TLS protocols to establish a secure connection between the email client and the email server, protecting the data being transmitted.
- Ability to access emails offline: IMAPS allows users to download emails to their device, enabling them to access and read their emails even when they are not connected to the internet.