Category: Exchange Server 2016

Enable Litigation Hold for all Mailboxes in Office 365

There’s no built-in feature at this time to enable litigation hold for all mailboxes in Exchange Online, but some organisations have this as a requirement. Here’s a script that can be run ad-hoc to enable litigation hold for all mailboxes. When prompted, enter your Exchange Online credentials.   # Connect to Exchange Online $exo = New-PSSession […]

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How To Export \ Import Single Mailbox Folder To PST File Exchange Server 2010 / 2013 /2016

This article will show you how to export a single folder from an entire mailbox to a PST file on Exchange Server 2010, 2013 and 2016. To start the process open EMS and type the command below (change mailbox and source folder path). New-MailboxExportRequest -mailbox adminu -SourceRootFolder “Inbox/folder” -filepath \\exchange\C$\Source\adminu.pst You can import it to another mailbox by running […]

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PowerShell Code: Get Mailboxes with Size Greater Than X

Today, I’ll show you another classic PowerShell Code for Exchange Server that will let you search for users with a mailbox size of X and above. I came across the need to do this when I had to rebalance mailboxes on Exchange Server and wanted to know which users have mailboxes over 5GB. The code […]

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Microsoft Exchange 2013: OWA Signature Error

In Microsoft Exchange, you may have received these error messages: “The signature is too big. Please try a smaller format.” “The Property X is out of range, the valid range is x to x.” “The length of the property is too long. The maximum length is 8000 and the length of the value provided is 16814.” […]

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Remove All Emails from a specific sender

1.  Connect to Exchange On-line From the PowerShell console on an Exchange 2010 server: $Cred = Get-Credential $s = New-PSSession -ConfigurationName Microsoft.Exchange -ConnectionUri https://ps.outlook.com/powershell -Credential $cred -Authentication Basic –AllowRedirection Import-PSSession $s Type in your ada credentials with username of <username>@domain.com Type in your domain admin credentials with username of domain\<username>   Run this command in […]

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O365 to Exchange on-prem migration error

When you attempt to migrate an O365 user back to Exchange 2010 on-prem you may receive this error:   “You shouldn’t migrate mailbox ‘Paul Demmer’ to Exchange 2010 or an earlier version while the user’s Instant Messaging contact list is stored in Exchange. If you do, the user could permanently lose access to their Instant […]

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Copy members from one Distribution Group to another Distribution Group in PowerShell

As an Exchange and Active Directory administrator you may be asked at some point to make a new distribution group from one or more other distribution groups. Exchange 2010 and PowerShell make this a very easy task. So to get started log in to your exchange server and open your Exchange Management Console.     Now […]

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Converting User mailbox to Shared or Room mailbox

Open Exchange Management Shell Enter the following command: get-mailbox -identity <username or display name> | set-mailbox -type shared Afer the process completes, the mailbox will show as a share box.     Example:                   ***To convert shared to a user mailbox enter the following command:   Enter […]

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Unable to Migrate O365 user back to Exchange On-Prem – ERROR: Cannot find a recipient that has mailbox GUID

When you try to migrate an O365 mailbox back to Exchange on-premise, you may run into this error message.                 Below is the solution for it.     SOLUTION Set the ExchangeGUID property on the associated on-premises remote mailbox before you move the mailbox to the on-premises organization. […]

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