From 429240f403fdcb7d0741ced4e322ccb24441b194 Mon Sep 17 00:00:00 2001
From: "Jeremy D. Berkleef" <jberkleef@aperturect.com>
Date: Thu, 4 Nov 2021 09:58:20 +0100
Subject: [PATCH] Add mass mailbox locale changing functionality

---
 Docs/exchange-toolkit.md |  5 ++++-
 exchange-toolkit.ps1     | 15 +++++++++++++++
 2 files changed, 19 insertions(+), 1 deletion(-)

diff --git a/Docs/exchange-toolkit.md b/Docs/exchange-toolkit.md
index fa0c742..eff62c8 100644
--- a/Docs/exchange-toolkit.md
+++ b/Docs/exchange-toolkit.md
@@ -39,4 +39,7 @@
 
  ### 5. Export a series of mailboxes to .pst
  This has only been tested against On-Prem Exchange.
- This option will export the mailboxes found via the search term to a .pst. For some reason, Exchange requires a UNC path for the export.
\ No newline at end of file
+ This option will export the mailboxes found via the search term to a .pst. For some reason, Exchange requires a UNC path for the export.
+
+ ### 6. Set mailbox locale based on a search term
+ This allows you to change a large number of mailboxes' language, time zone and date format settings in one go.
\ No newline at end of file
diff --git a/exchange-toolkit.ps1 b/exchange-toolkit.ps1
index 2453f6e..9e12f39 100644
--- a/exchange-toolkit.ps1
+++ b/exchange-toolkit.ps1
@@ -25,6 +25,10 @@
     Write-Host -ForegroundColor Cyan " '5' " -NoNewline
     Write-Host "to export a list of mailboxes to .pst based on a search term."
 
+    Write-Host "6: Press" -NoNewline
+    Write-Host -ForegroundColor Cyan " '6' " -NoNewline
+    Write-Host "to change mailbox locale/language based on a search term."
+
     Write-Host "Q: Press" -NoNewline
     Write-Host -ForegroundColor Red " 'Q' " -NoNewline
     Write-Host "to quit."
@@ -126,6 +130,17 @@ do
             New-MailboxExportRequest -Mailbox $mailbox -FilePath "$exportPath.pst"
             }
     }
+
+    '6' {
+        $searchTerm = Read-Host -Prompt "Input Query"
+        $targetLanguage = Read-Host -Prompt "Language to switch to (nl-NL for Dutch)"
+        $targetTimezone = Read-Host -Prompt "Time zone to switch to ("W. Europe Standard Time" for GMT -1)"
+        $targetDateFormat = Read-Host -Prompt "Date format to switch to (e.g. "d-M-yyy")"
+
+        #Search mailboxes and apply the changes
+        Get-Mailbox | Where-Object {$_.EmailAddresses -like "$searchTerm"} | Set-MailboxRegionalConfiguration -Language "$targetLanguage" -TimeZone "$targetTimezone" -DateFormat "$targetDateFormat"
+    }
+
     }
     Read-Host -Prompt 'Press Enter to Continue'
 }