Update the Offline Address Book
By default the Offline Address Book (OAB) in Exchange 2010 only gets rebuilt every 24 hours. Also, Outlook clients only download the OAB once every 24 hours so it can seem like days before new entries are visible to end…
View the members of a Dynamic Distribution Group using PowerShell
If you need to preview the members of a Dynamic Distribution Group then you can do this easily using the Get-Recipient and Get-DynamicDistributionGroup cmdlets. The following example returns the list of members in the “Newport Users” DDG: $DDG = Get-DynamicDistributionGroup…
Create a Dynamic Distribution Group by Office
Using the Exchange Management Console in Exchange 2010 to create a Dynamic Distribution Group only allows for a limited number of conditions, such as State, Department or Company. As is often the case PowerShell is the way to get around this….
Exchange Server Role Requirements Calculator
If you are planning an Exchange Server deployment or upgrade then I highly recommend you download and use the Exchange Server Role Requirements Calculator – it is ideal for server and storage modelling. Version 9.1 is available here: https://gallery.technet.microsoft.com/office/Exchange-2013-Server-Role-f8a61780
Export messages from a mailbox that were sent or received on or after a specific date
I have a requirement to export all messages from an Exchange mailbox that were sent or received after a specific date to a PST file. This was easy to achieve using the New-MailboxExportRequest cmdlet and specifying the dates within the…
Importing a PST fails when using New-MailboxImportRequest
I have a requirement to import some PST files into different mailboxes in Exchange. This is easy to do using the New-MailboxImportRequest PowerShell cmdlet however when it fails it isn’t easy to see why. Fortunately, we can get more information…
Use PowerShell to determine the total size of disconnected mailboxes in a mailbox database
I have been performing some housekeeping tasks which include removing old user mailboxes. While doing this I was curious how much disk space I would be saving so I took a few minutes to leverage the Get-MailboxStatistics cmdlet and…
Search for and delete content within a mailbox using PowerShell
I was recently asked to delete a specific message from a user mailbox as the recall function did not work (the message had already been read). I was able to check if the message existed in the mailbox using the…
Determine the average mailbox size using PowerShell
I have been asked to provide a colleague with some statistics around our Exchange environment, including the average mailbox size. There is no way to determine this using the GUI so once again PowerShell comes to the rescue with…
Count the number of mailboxes using PowerShell
If you need a quick and easy way to count the number of mailboxes in your Exchange environment then you can use the Get-Mailbox cmdlet: (Get-Mailbox -ResultSize Unlimited).Count