Question
Can specific file extensions be excluded from encryption for Secure Download?
Answer
Yes.
This can be achieved by defining settings for each Rule Group (*).
For example, for a Rule Group where "send with Secure Download (HSD)" is selected under [Action] - [Attachments] in a Rule, Integrate a Rule that does not Apply Secure Download, and configure it as follows.
Action
・Action: "Configure according to the original rule"
・Attachments: Send unmodified
Rule Conditions
・Target: Attachments
・Predicate: with filename that matches regular expression
・Pattern: \.zip$
※This is the condition for excluding files with the extension ".zip".
Reference: Create a Rule
(*) [File Extensions Not to Be Encrypted] under Encryption Types is a setting that is only effective when sending with ZIP encryption.
Therefore, files are not excluded in Secure Download.
Please note that a Rule definition for exclusion is required for each Rule where "send with Secure Download (HSD)" is selected.
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