Exam SY0-601 topic 1 question 571 discussion

The most likely cause of the issue is that the S/MIME (Secure/Multipurpose Internet Mail Extensions) plug-in, which is used for email encryption and digital signing, is not enabled or properly configured on the financial analyst's email client. S/MIME is a widely used protocol for securing email communications by providing encryption and digital signatures. If the analyst was expecting an encrypted email from the client, but the S/MIME plug-in is not enabled or not set up correctly, the email client will not be able to decrypt the message, resulting in an error when trying to open the encrypted email.

S/MIME (Secure/Multipurpose Internet Mail Extensions)

A. The S/MIME plug-in is not enabled I think that potentially both A & B are correct here. I am going with A though. "Note: If you receive an encrypted message before you've installed the S/MIME control, you’ll be prompted to install the control when you open the message." "S/MIME isn't configured to work with the current domain. You can add it in S/MIME Extension options page in the settings for your browser." https://support.microsoft.com/en-au/office/encrypt-messages-by-using-s-mime-in-outlook-on-the-web-878c79fc-7088-4b39-966f-14512658f480

Secure/Multipurpose Internet Mail Extension S/MIME is one of the most popular standards used to digitally sign and encrypt email. Most email applications that support encryption and digital signatures use S/MIME standards. It uses both Symmetric and Asymmetric encryption to encrypt email in transit (data sent over the network) and at rest (Stored in the drive).