Why do I need to replace the zmmailboxdmgr file when enabling debug mode on Zimbra?

The `zmmailboxdmgr` script controls the JVM process and by default restricts debug options. Replacing it with the unrestricted version (`zmmailboxdmgr.unrestricted`) removes those restrictions, allowing the JVM to accept debugger connections. This step is essential for attaching a remote debugger like IDEA, as outlined in Setting up Zimbra Vulnerability Debugging Environment.