Target
This article is intended for administrators who are responsible for the initial setup and operational management of HENNGE Email DLP and wish to write regular expressions.
Purpose
This guide provides instructions and examples on how to write regular expressions within the rule group settings of HENNGE Email DLP.
Notes
1. The content of this article is based on the product specifications as of August 2024 and may be subject to change without notice.
2. Administrator privileges for HENNGE Email DLP are required to verify actual screens and modify settings.
3. The URL of the HENNGE Email DLP user interface varies depending on your tenant.
・PC : https://console.mo.hdems.com/#/[Main Domain]
・Mobile : https://console.mo.hdems.com/#/m/[Main Domain]
※ Please replace [Main Domain] with your contracted domain.
4. HENNGE Email DLP uses the re2 regular expression library.
5. HENNGE Email DLP does not distinguish between uppercase and lowercase letters in regular expressions.
Detailed Explanation / Procedure
The expressions listed in this article should be used when setting up the following items.
1. Rule Group
1. Basics of Regular Expressions
When writing regular expressions, if the following characters are included in the specified string, they need to be escaped.
Characters that need to be escaped:
.[](){}*^\|+?$
To escape, place a backslash \ before the character.
Example: \.zip
2. Regular Expression Examples
The following examples within the HENNGE Email DLP rule group can be used to enforce conditions required for email operations.