Information
This policy setting allows you to configure e-mail scanning. When e-mail scanning is enabled, the engine will parse the mailbox and mail files, according to their specific format, in order to analyze the mail bodies and attachments. Several e-mail formats are currently supported, for example: pst (Outlook), dbx, mbx, mime (Outlook Express), binhex (Mac).
The recommended state for this setting is: Enabled.
Rationale:
Incoming e-mails should be scanned by an antivirus solution such as Microsoft Defender Antivirus, as email attachments are a commonly used attack vector to infiltrate computers with malicious software.
Impact:
E-mail scanning by Microsoft Defender Antivirus will be enabled.
Solution
To establish the recommended configuration, set the following Device Configuration Policy to Enabled:
To access the Device Configuration Policy from the Intune Home page:
Click Devices
Click Configuration profiles
Click Create profile
Select the platform (Windows 10 and later)
Select the profile (Administrative Templates)
Click Create
Enter a Name
Click Next
Configure the following Setting
Path: Computer Configuration\Windows Components\Microsoft Defender Antivirus\Scan
Setting Name: Turn on e-mail scanning
Configuration: Enabled
Select OK
Continue through the Wizard to complete the creation of the profile (profile assignments, applicability etc.)
Note: More than one configuration setting from each of the Configuration profiles (ex: Administrative Templates, Custom etc.) can be added to each Device Configuration Policy.
Default Value:
Disabled. (E-mail scanning by Microsoft Defender Antivirus will be disabled.)