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Just can't get enough of IT

This blog is about mostly anything in IT. But the primary focuses are Microsoft Technologies like Exchange, Office 365, Azure and Cloud Security.

Exchange Server 2013Exchange Server 2016Problem

Out-of-Office (OOF) messages have to follow the compliance rules as regular email communication. This is not necessarily a known fact to end users.

If a company does have a strict compliance policy regarding external OOF messages you can use the following solution to establish a strict and simple to use OOF configuration. 

Only specific employees are supposed to send OOF messages to external recipients. All other employees are supposed to send internal OOF messages only.

Solution

The solution consists of two PowerShell scripts.

The first script is used to remove any exisiting OOF rules created by a user using the Outlook OOF Rule Wizard. This is required to avoid any strange behaviours in regards to OOF messages being sent even if OOF is deactivated. The most common reasons for such a behaviour are migrated OOF rules created by previous Exchange Server versions.

  1. Remove-OOFRule.ps1

    This script finds and removes all OOF rules for all users using Exchange Web Services (EWS).
    This script is supposed to be executed in preparation for the next script.  
     
  2. Set-ExternalOOF.ps1

    This script sets the ExternalOofOptions attribute of a user mailbox depending on an Active Directory group membership. After cleaning up all OOF rules in step one, you will be able to control the OOF settings by group membership. 

You can read more about scripts here:

You can use the follow command line example, if you want to automate the execution of script 2 using a scheduled task.

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe -version 3.0 -command ". 'D:\Program Files\Microsoft\Exchange Server\V15\bin\RemoteExchange.ps1'; Connect-ExchangeServer -auto; "D:\Scripts\Set-ExternalOOF\Set-ExternalOOF.ps1 -RemoveRights"

 

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Exchange Server 2013Exchange Server 2016Description

This script searches for OOF rules created by users using the Outlook rule-tab in the OOF assistant and deletes exisiting OOF rules.

In preparation to configure compliant Out-Of-Office (OFF) settings for users, any existing OOF rule needs to be deleted. The script will use either an exisiting Exchange Server EWS library or the Managed EWS library installed using the default file path.

This is the first of two scripts for the complete solution. Find the second script here.

The script access the mailbox rules using Exchange Web Services. Therefore the account executing the script either needs to have ApplicationImpersonation rights or full access to the user mailbox.

Requirements

Examples

# EXAMPLE 1
# Find any existing OOF rule and write results to log file
Remove-OOFRule 

# EXAMPLE 2
# Find and delete any existing OOF rules in all user mailboxes and write delete actions to log file
Remove-OOFRule -Delete

# EXAMPLE 3
# Find and delete any existing OOF rules for user SomeUser@varunagroup.de and write delete actions to log file
Remove-OOFRule -Mailbox SomeUser@varunagroup.de -Delete

Version History

  • 1.0, Initial community release

Links

Additional Credits

Rhoderick Milne (https://blogs.technet.microsoft.com/rmilne)

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Exchange Server 2013Exchange Server 2016Description

This script sets the mailbox ExternalOofOptions to 'External' for members of a given security group.

ExternalOofOptions for users that are NOT a member of the security group will be set to 'InternalOnly'. If required the script will set the ExternalAudience to None and will delete an existing OOF message.

Controlling the ExternalOofOptions and ExternalAudience settings has been implemented to follow dedicated company compliance rules.

This is the second of two scripts for the complete solution. Find the first script here.

Requirements

Examples

# EXAMPLE
# Run script with default settings
.\Set-ExternalOOF.ps1

Version History

  • 1.0, Initial community release

Links

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The PowerShell script to Set mailbox quotas at database or mailbox level the simple way has been updated to Version 1.4.

The code has been refactored to functions and has received some PowerShell hygiene patters.

Please report any issues directly at Github.

If you like the script, please rate the script at TechNet Gallery.

Enjoy!

 

 

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On April 10, 2017
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Exchange Server 2013 Exchange Server 2016 The PowerShell script to purge Exchange Server and IIS log files has been updated to version 2.0.

Release 2.0 allows for copying of files that will be deleted to be copied to a central file repository. The script will create a folder per server and the full log file folder structure will be preserved.

The next release will contain an option to compress the copied log files.

Added code:

function Copy-LogFiles {
  [CmdletBinding()]
  param(
    [string]$SourceServer,
    [string]$SourcePath,
    $FilesToMove
  )

  if($SourceServer -ne '') { 

    # path per SERVER for zipped archives
    $ServerRepositoryPath = Join-Path -Path $RepositoryRootPath -ChildPath $SourceServer

    # subfolder used as target for copying source folders and files
    $ServerRepositoryLogsPath = Join-Path -Path $ServerRepositoryPath -ChildPath $LogSubfolderName

    $ServerRepositoryPath = Join-Path -Path $RepositoryRootPath -ChildPath $SourceServer

    if(!(Test-Path -Path $ServerRepositoryPath)) {
      # Create new target directory for server, if does not exist
      $null = New-Item -Path $ServerRepositoryPath -ItemType Directory -Force -Confirm:$false
    }

    foreach ($File in $FilesToMove) {
      # target directory
      $targetDir = $File.DirectoryName.Replace($TargetServerFolder, $ServerRepositoryLogsPath)

      # target file path
      $targetFile = $File.FullName.Replace($TargetServerFolder, $ServerRepositoryLogsPath)
      
      # create target directory, if not exists
      if(!(Test-Path -Path $targetDir)) {$null = mkdir -Path $targetDir}

      # copy file to target
      $null = Copy-Item -Path $File.FullName -Destination $targetFile -Recurse -Force -Confirm:$false -ErrorAction SilentlyContinue

    }-Force   
    
    if($ZipArchive) {
      # zip copied log files
      #
      <# NOT FULLY TESTED YET 
      $Archive = Join-Path -Path $ServerRepositoryPath -ChildPath $ArchiveFileName
      $logger.Write(('Zip copied files to {0}' -f $ArchiveFileName))

      if(Test-Path -Path $Archive) {Remove-Item $Archive -Force -Confirm:$false}

      Add-Type -AssemblyName 'System.IO.Compression.FileSystem'
      [IO.Compression.ZipFile]::CreateFromDirectory($ServerRepositoryLogsPath,$Archive)

      #>
    } 
  }  
}

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