Update users email address through powershell for AzureAD - azure

Question

I was wondering if someone could help, we have some users in our organisation who are using uppercase email address, certain applications can't recognize this and fail. I have developed the script below to change the users UPN and display names to lowercase, however this doesn't change their email address. I don't want to create new mailboxes as there are several hundred users that have the incorrect format. If anyone could point me in the right direction, that would be a great help.
#Install-module AzureAD
#Connect-AzureAD
$Users = Get-azureADUser -filter "userPrincipalName eq 'User1#MyDomain.com'"
$ErrorActionPreference = 'Stop'
$OutputObj = New-Object -TypeName PSobject
$OutputObj1 = New-Object -TypeName PSobject
$SuccessOutput = #()
$ErrorOutput = #()
$Case = "toLower"
Function ChangeToLowerCase{
Try{
foreach ($user in $users) {
$user | Set-AzureADUser -userPrincipalName $user.userPrincipalName.$Case()
$user | Set-AzureADUser -identity $user.SipProxyAddress.$Case()
#$User | Select-Object DisplayName, userPrincipalName,Mail
$OutputObj | Add-Member -memberType NoteProperty -name "Display Name" -value $($user.DisplayName)
$OutputObj | Add-Member -memberType NoteProperty -name "UPN" -value $($user.userPrincipalName)
$OutputObj | Add-Member -memberType NoteProperty -name "Email Address" -value $($user.Mail)
$SuccessOutput +=$OutputObj
$SuccessOutput | Export-csv "C:\Temp\Powershell\Completed\UPN Changes.csv" -NoTypeInformation -NoClobber -Append
}
}
Catch{
$OutputObj1 | Add-Member -memberType NoteProperty -name "Display Name" -value $($user.DisplayName)
$OutputObj1 | Add-Member -memberType NoteProperty -name "Error Message" -value $($_.Exception.Message)
$ErrorOutput +=$OutputObj1
$ErrorOutput | Export-csv "C:\Temp\Powershell\Errors\UPN Changes Error.csv" -NoTypeInformation -NoClobber -Append
}
}
ChangeToLowerCase
I am looking at the Set-AzureAduser property, however I am unable to change the mail property in this variable.

Answer 1

Nice, I had the same issue after we added a domain with a capital W. It wont change the email address because it's not case sensitive.
I created this to resolve the issue:
function ConvertTo-LowerW
{
foreach ($Recipient in $Recipients)
{
"1"
$Recipient.PrimarySmtpAddress
$SplitEmail = $Recipient.PrimarySmtpAddress.Split('#')
$BeforeA = $SplitEmail | Select-Object -First 1
$AfterA = ($SplitEmail | Select-Object -Last 1).ToLower()
$NewPrimarySmtpAddress = $BeforeA + '#' + $AfterA
$NewPrimarySmtpAddress
switch ($Recipient.RecipientType)
{
'UserMailbox'
{
try
{
$Addresses = (Get-Mailbox -Identity $Recipient.PrimarySmtpAddress -ErrorAction Stop).EmailAddresses
$Addresses = $Addresses.Replace("SMTP:$($recipient.PrimarySmtpAddress)", "")
Set-Mailbox -ErrorAction Stop `
-Identity $Recipient.PrimarySmtpAddress `
-EmailAddresses $NewPrimarySmtpAddress
if ($Addresses.Length -ne 0)
{
foreach ($Address in ($Addresses | Where-Object { $_.Length -ne 0 }) )
{
$Address
if ($Address.Length -ne 0 )
{
Set-Mailbox -ErrorAction Stop `
-Identity $Recipient.PrimarySmtpAddress `
-EmailAddresses #{add = "$Address" }
}
}
}
}
Catch
{
$ErrorList.Add($Recipient.PrimarySmtpAddress)
$ErrorList.Add($_.Exception.Message)
}
}
'MailUniversalDistributionGroup'
{
try
{
$Addresses = (Get-DistributionGroup -Identity $Recipient.PrimarySmtpAddress -ErrorAction Stop).EmailAddresses
$Addresses = $Addresses.Replace("SMTP:$($recipient.PrimarySmtpAddress)", "")
Set-DistributionGroup -ErrorAction Stop `
-Identity $Recipient.PrimarySmtpAddress `
-EmailAddresses $NewPrimarySmtpAddress
if ($Addresses.Length -ne 0)
{
foreach ($Address in ($Addresses | Where-Object { $Addresses.Length -ne 0 }))
{
if ($Address.Length -ne 0 )
{
Set-DistributionGroup -ErrorAction Stop `
-Identity $Recipient.PrimarySmtpAddress `
-EmailAddresses #{add = "$Address" }
}
}
}
}
catch
{
$ErrorList.Add($Recipient.PrimarySmtpAddress)
$ErrorList.Add($_.Exception.Message)
}
}
'DynamicDistributionGroup'
{
try
{
$Addresses = (Get-DynamicDistributionGroup -Identity $Recipient.PrimarySmtpAddress -ErrorAction Stop).EmailAddresses
$Addresses = $Addresses.Replace("SMTP:$($recipient.PrimarySmtpAddress)", "")
Set-DynamicDistributionGroup -ErrorAction Stop `
-Identity $Recipient.PrimarySmtpAddress `
-EmailAddresses $NewPrimarySmtpAddress
if ($Addresses.Length -ne 0)
{
foreach ($Address in ($Addresses | Where-Object { $Addresses.Length -ne 0 }))
{
$Address
if ($Address.Length -ne 0 )
{
Set-DynamicDistributionGroup -ErrorAction Stop `
-Identity $Recipient.PrimarySmtpAddress `
-EmailAddresses #{add = "$Address" }
}
}
}
}
catch
{
$ErrorList.Add($Recipient.PrimarySmtpAddress)
$ErrorList.Add($_.Exception.Message)
}
}
Default
{
try
{
$Recipient.RecipientType
$Recipient.RecipientTypeDetails
'User has an unrecognized Recipienttype'
Send-Email `
-To $to `
-Body 'Test' `
-Subject 'User has an unrecognized Recipienttype'
}
catch
{
$ErrorList += "$($($Recipient).PrimarySmtpAddress) has an unrecognized RecipientType $($($Recipient).Recipienttype)"
$ErrorList.Add($Recipient.PrimarySmtpAddress)
$ErrorList.Add($_.Exception.Message)
}
}
}
}
}
I'll see if I can create a blog post on bwit.blog regarding this.