Category Archives: Exchange 2013

Exchange 2007, Exchange 2010, Exchange 2013, Powershell

Exporting shared mailbox permissions to a CSV

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A demonstration of one way to get shared mailbox permissions exported to a CSV file. We needed both users, groups and users in groups (so, a recursive search). Only Shared mailboxes had to be included, we could identity these by a simple rule:

the first portion of the primary email address does not contain a dot

See line 126 and 127 for this rule if you need a different method.

Edit: make sure you replace CED\ with your own domain! Sorry bout that…

This export excludes Deny permissions and looks for users in groups up to 2 levels deep. Credits to Piotrek for his Get-ADNestedGroupMember function.

Script source: Continue reading Exporting shared mailbox permissions to a CSV →

Exchange 2007, Exchange 2010, Exchange 2013, Exchange Online, Powershell

Exchange Forwarding Report

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This powershell snippet will tell you which mailbox is actively forwarding email, in what method (dual delivery or pure forwarding), to which email address and if the corresponding contact still exists and is active.

#Module name: findForwarderDetails
#Author: Jos Lieben (OGD)
#Date: 01-04-2016
#Description: this snippet will discover all active forwarders in your organization, and will print the original mailbox, target contact and target address and forwarding method

$output = @()
$mailboxes = Get-Mailbox -ResultSize Unlimited | Where {$_.ForwardingAddress -ne $Null}

foreach ($mailbox in $mailboxes){

    $obj = New-Object PSObject
    $obj | Add-Member NoteProperty mailboxName($mailbox.DisplayName)
    if($mailbox.DeliverToMailboxAndForward){
        $obj | Add-Member NoteProperty forwardingMode("Dual delivery")
    }else{
        $obj | Add-Member NoteProperty forwardingMode("Forward Only")
    }
    try{
        $contact = Get-MailContact -Identity $mailbox.ForwardingAddress.DistinguishedName -ErrorAction Stop
        $obj | Add-Member NoteProperty forwardingToName($contact.DisplayName)
        $obj | Add-Member NoteProperty forwardingToEmail($contact.ExternalEmailAddress)
    }catch{
        $obj | Add-Member NoteProperty forwardingToName("CONTACT DOES NOT EXIST OR IS DISABLED")
        $obj | Add-Member NoteProperty forwardingToEmail("CONTACT DOES NOT EXIST OR IS DISABLED")
    }
    $output += $obj
}

Write-Output $output
Exchange 2010, Exchange 2013, Powershell

Finding unused accepted domains in Exchange 2013

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If, for some reason, you want to see which domains in your exchange organisation are not being used (not registered in the ProxyAddresses fields of your users), use below snippet in the Exchange Powershell Module.

Note: this does NOT (yet) check for domains used in Public Folders or Mail Contacts.


$mailboxes = get-mailbox -Resultsize Unlimited
$groups = get-distributiongroup -Resultsize Unlimited
$domains = Get-AcceptedDomain
$output = @()

foreach ($domain in $domains){

 $obj = New-Object PSObject
 $obj | Add-Member NoteProperty domainName($domain.DomainName)
 $obj | Add-Member NoteProperty domainType($domain.DomainType)
 $res = $mailboxes | where-object {$_.EmailAddresses -Match $domain.DomainName}
 if(-not $res){
 $res = $groups | where-object {$_.EmailAddresses -Match $domain.DomainName}
 }
 if($res){
 $obj | Add-Member NoteProperty inUse("YES")
 }else{
 $obj | Add-Member NoteProperty inUse("NO")
 }
 $output += $obj
}

Write-Output $output
Automation, Exchange 2010, Exchange 2013, Exchange Online, Office 365, Powershell, Skype Online

Automating remote mailbox creation in an Exchange 2010/2013 and Office 365 hybrid setup

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In organisations that have moved to Office 365, or are moving to Office 365 while using a hybrid setup with an on-premises Exchange 2010, 2013 or 2016 server and/or Lync/Skype, your helpdesk tools and scripts need to be adjusted.

While previously, you would provision your account in Active Directory, the mailbox on the onpremises Exchange Server and voip functionality on the Lync/Skype server, after your migration, you no longer need to provision mailboxes or lync accounts on premises. After a user has been migrated to Office 365, his ‘user type’ in the Exchange on premises server is ‘Remote Mailbox’. But for new users, this is not set automatically.

If you’re using scripting or tools like ADManager, you can use some simple Powershell commands to set the correct properties on a newly created user.

Configure and run below script Continue reading Automating remote mailbox creation in an Exchange 2010/2013 and Office 365 hybrid setup →

Exchange 2007, Exchange 2013, Office 365

Exchange 2007 Hybrid Migration to Office 365 with Exchange 2013 Coexistence

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During a migration for a customer from an Exchange 2007 environment, to Office 365, I ran into some issues that I’d like to share, as I could not find any material on this subject elsewhere.

Our plan was easy, update the Exchange 2007 servers to the latest Servicepack and CU to allow coexistence with an Exchange 2013 server as detailed on technet. I’d then build up the Hybrid relationship on the 2013 machine, move the mailboxes and phase out the 2007 machines. The 2013 machine would remain for on-premises Lync connectivity, which needs a CAS to talk to.

Once the Exchange 2013 server was installed, I prepared the machine for Hybrid connectivity, added the relevant domains to Office 365 and started the Hybrid setup wizard from the Exchange 2013 ECP.

I received the following error:

[PS] C:\Windows\system32>Get-WebServicesVirtualDirectory
An IIS directory entry couldn't be created. The error message is Access is denied.
. HResult = -2147024891
    + CategoryInfo          : NotInstalled: (EXCH2007-1\EWS (Default Web Site):ADObjectId) [Get-WebServicesVirtualDirect
   ory], IISGeneralCOMException
    + FullyQualifiedErrorId : [Server=EXCH2013,RequestId=f962a8dd-2d39-4b36-85c3-a16a15fc3252,TimeStamp=9-6-201
   5 07:50:59] [FailureCategory=Cmdlet-IISGeneralCOMException] 18EA544C,Microsoft.Exchange.Management.SystemConfigura
  tionTasks.GetWebServicesVirtualDirectory
    + PSComputerName        : exch2013.fqdn

An IIS directory entry couldn't be created. The error message is Access is denied.
. HResult = -2147024891
    + CategoryInfo          : NotInstalled: (EXCH2007-2\EWS (Default Web Site):ADObjectId) [Get-WebServicesVirtualDirect
   ory], IISGeneralCOMException
    + FullyQualifiedErrorId : [Server=EXCH2013,RequestId=f962a8dd-2d39-4b36-85c3-a16a15fc3252,TimeStamp=9-6-201
   5 07:50:59] [FailureCategory=Cmdlet-IISGeneralCOMException] 18EA544C,Microsoft.Exchange.Management.SystemConfigura
  tionTasks.GetWebServicesVirtualDirectory
    + PSComputerName        : exch2013.fqdn

The hybrid wizard aborted, and could not continue.
The Get-WebServicesVirtualDirectory command checks all Continue reading Exchange 2007 Hybrid Migration to Office 365 with Exchange 2013 Coexistence →