Powershell Commands

There are three command lines now.

• The original command line DOS prompt
• Powershell
• Exchange Management Shell (EMS)

Most of these will be used in the EMS.

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, this is the same as if we piped through "| FT" to format as a table.

Get-Mailbox | Get-MailboxStatistics

For more detail you can format as a list by adding "| 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

You can even restrict it to a single user once you know which one is the largest. [1]

Get-MailboxFolderStatistics [userName] | Select Name,FolderSize,ItemsinFolder

You can move items from one folder to another [2]

Creating a Mailbox Folder Growth Map with Powershell, EWS and eDiscovery [3]

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 messages (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