Powershell Commands

Gathering a list of useful Powershell commands

Basic Authentication

Retain needs Basic Authentication enabled across the system not just on one CAS.

EWS

This script shows if Basic Authentication was enabled for EWS.

Get-WebServicesVirtualDirectory | ft server,basicauthentication

To enable Basic Authentication you can use this script if you are a Domain or higher admin.

Set-WebServicesVirtualDirectory -Identity "EWS (Default Web Site)" -BasicAuthentication $true

AutoDiscover

This script shows if Basic Authentication was enabled for AutoDiscover.

Get-AutoDiscoverVirtualDirectory | ft server,basicauthentication

To enable Basic Authentication you can use this script if you are a Domain or higher admin.

Set-AutodiscoverVirtualDirectory -Identity 'autodiscover (Default Web Site)' -BasicAuthentication $true

IIS

To restart IIS from Powershell:

IISRESET

Users and Mailbox Items

A quick overview of users and how many items they have in their mailbox:

Get-Mailbox | Get-MailboxStatistics

For more detail add "| FL" but it would be best to pipe to a file because it will provide more information then the screen can hold.

Get-Mailbox | Get-MailboxStatistics | FL > c:\stats.txt

This script will get the size of the mailboxes of the first 30 users.

Get-Mailbox -ResultSize Unlimited | Get-MailboxStatistics | Sort-Object TotalItemSize -Descending | Select-Object DisplayName,TotalItemSize -First 30

Queues

An Exchange server can become bogged down if the queues cannot clear. You can see the queue status with:

Get-Queue

If there are thousands of message (e.g. in \Unreachable) and they are not clearing then there is an issue. You can open Exchange Toolbox and in Queue Viewer delete messages. If that is not successful then you need to restart the Microsoft Exchange Edge Transport, Microsoft Exchange Mailbox Transport Delivery and/or SMTP services