Migrate Exchange on-prem user to O365

Migrate users a. 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 ada credentials with username of domain\<username> b. Run command to migrate user New-MoveRequest –Identity <username […]

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PowerShell – Get a list of my domain Organizational Units

PowerShell – Get a list of my domain Organizational Units Quick post, last week my coworker Andrey needed to list all the Organization Units in the domain by Canonical Name. I thought sharing the PowerShell One-Liner magic could save time to some people out there. In the following examples two methods to retrieve the information using Active Directory and ADSI/NET. Active […]

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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 Powershell     Search-Mailbox -identity […]

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Active Directory : Create test users using PowerShell

I’ve often had a need for some users for various test purposes, and want a script to quickly create these users. Create Organizatiol Unit (OU) In order to use the cmdlets needed you need Access to a Domain Controller or have RSAT (opens a Google search) installed on your Workstation and use import-module *active* You can skip importing the module if […]

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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 Messaging contact list, which will cause […]

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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 we need to create the […]

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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. To do this, follow these […]

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Delete specific email from O365 mailboxes

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 Domain Admin credentials with username of <username>@domain.com Type in your Domain Admin credentials with username of domain\<username>   Run this command: you will need the distribution […]

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Delete a Calendar item from a mailbox

If you have the need to remove a specific calendar event/appointment from a mailbox, you can do it through Power Shell or Exchange Management Shell. Open PowerShell or EMS If this is an O365 mailbox, you will need to connect to the O365 environment Connect to Exchange On-line From the PowerShell console on an Exchange 2010 server: $Cred = Get-Credential […]

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How to Export AD user list with email addresses

If you have the need to export a user list from an Active Directory group along with the user’s email address, run the following command in PowerShell as an administrator.   If your AD has the e-mail attribute filed out:   Powershell Get-ADGroupMember -Identity “groupname” -Recursive | Get-ADUser -Properties Mail | Select-Object Name,Mail | Export-CSV -Path C:\file.csv -NoTypeInformation     […]

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