Summary

This article entails steps how to resolve problem in changing Access Permissions (Full Access) on a Mailbox. The operation appears to go through, however if you click away and then click back to the permissions nothing has gone through.

Applies To

MachPanel

Reason:

Missing RSAT Feature on mailbox server.

This is happening because the operation is failing on your exchange mailbox server because it does not allow AD Commands to be executed.  Try executing Get-ADUsercommand on your exchange mailbox server that is integrated into your control panel and you will notice an error.

Moreover, the RSAT feature is not just a requirement of MachPanel, rather it is part of Microsoft Best Practices and should have already been installed.

Solution

You have to allow execution of AD related commands from your exchange server. If you are missing this, you can install it now by following instructions on Microsoft link below:

https://technet.microsoft.com/en-us/library/bb691354(v=exchg.150)

Commands to execute are as follows:

Install-WindowsFeature AS-HTTP-Activation, Desktop-Experience, NET-Framework-45-Features, RPC-over-HTTP-proxy, RSAT-Clustering, RSAT-Clustering-CmdInterface, RSAT-Clustering-Mgmt, RSAT-Clustering-PowerShell, Web-Mgmt-Console, WAS-Process-Model, Web-Asp-Net45, Web-Basic-Auth, Web-Client-Auth, Web-Digest-Auth, Web-Dir-Browsing, Web-Dyn-Compression, Web-Http-Errors, Web-Http-Logging, Web-Http-Redirect, Web-Http-Tracing, Web-ISAPI-Ext, Web-ISAPI-Filter, Web-Lgcy-Mgmt-Console, Web-Metabase, Web-Mgmt-Console, Web-Mgmt-Service, Web-Net-Ext45, Web-Request-Monitor, Web-Server, Web-Stat-Compression, Web-Static-Content, Web-Windows-Auth, Web-WMI, Windows-Identity-Foundation, RSAT-ADDS

This will install the required features and alert for the ones that are already installed.

Alternatively you can only install RSAT Feature using following command and avoid the rest:

Install-WindowsFeature RSAT-ADDS

Thank you for your cooperation.