Which rules can be applied when handling Attachment types?

When it comes to handling attachment types in an email security context, the option indicating "All of these" encompasses a variety of rules that can be applied. Each of the other choices highlights a particular aspect of attachment handling.

Specific file types can be managed for enhanced security, allowing organizations to permit or block certain file extensions based on security policies or compliance requirements. This ensures that potentially harmful attachments like executable files are controlled.

Size limitations are also crucial, as they help manage the amount of data being transmitted and reduce the risk of large attachments that could lead to bandwidth issues or potential security vulnerabilities. Establishing size limits ensures that email systems operate efficiently and securely.

Moderate and high-risk criteria can be applied to assess the level of risk associated with certain attachments. This can involve heuristics or reputation-based analysis to determine whether to allow, block, or quarantine attachments that may be deemed unsafe.

By incorporating all these rules, organizations can create a comprehensive framework to effectively manage attachments, thereby enhancing their email security posture. Each element contributes to a more robust strategy for handling various attachment types, making the choice of "All of these" the most accurate.