Public/Domain/Remove-365Domain.ps1
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function Remove-365Domain { param ( [Parameter()] [switch] $ExportOnly, [Parameter()] [switch] $FlipMailbox, [Parameter()] [switch] $FlipMailUser, [Parameter()] [switch] $FlipUPN, [Parameter()] [switch] $FlipDLPrimary, [Parameter()] [switch] $FlipUGPrimary, [Parameter()] [switch] $RemoveMailUserProxy, [Parameter()] [switch] $RemoveMbxProxy, [Parameter()] [switch] $RemoveUGProxy, [Parameter()] [switch] $RemoveDLProxy ) $RoutingDomain = "*@contoso.onmicrosoft.com" $DomainSuffix = "@contoso.onmicrosoft.com" $WildCardDomain = "*.onmicrosoft.com" if ($ExportOnly) { Write-HostLog -Message "Creating`t$($NewDL.Name)`t$($NewDL.PrimarySmtpAddress)" Write-HostLog -Message "Running discovery on user accounts" $MsolUser = Get-MsolUser -All | Sort-Object -Property UserPrincipalName $Mailbox = Get-Mailbox -ResultSize Unlimited | Where-Object { $_.Name -notlike "DiscoverySearchMailbox*" } | Sort-Object -Property UserPrincipalName $MailUser = Get-MailUser -ResultSize Unlimited | Sort-Object -Property UserPrincipalName Write-HostLog -Message "`nTotal MsolUsers Found: $($MsolUser.count)" -Status "Success" Write-HostLog -Message "Total MailUsers Found: $($MailUser.count)" -Status "Success" Write-HostLog -Message "Total Mailboxes Found: $($Mailbox.count)" -Status "Success" $MsolProps = @( 'DisplayName', 'BlockCredential', 'UserPrincipalName', 'UserType', 'ImmutableId' ) $MsolCalcProps = @( @{n = "proxyAddresses" ; e = {($_.proxyAddresses | Where-Object {$_ -ne $null}) -join '|' }} ) $MailProps = @( 'DisplayName', 'Alias', 'LegacyExchangeDN', 'HiddenFromAddressListsEnabled', 'PrimarySmtpAddress' 'UserPrincipalName', 'SkuAssigned', 'LitigationHoldEnabled', 'IsDirSynced', 'AccountDisabled', 'RecipientTypeDetails' ) $MailCalcProps = @( @{n = "EmailAddresses" ; e = {($_.EmailAddresses | Where-Object {$_ -ne $null}) -join '|' }} ) $MsolUser | Select-Object ($MsolProps + $MsolCalcProps) | Export-Csv ".\MsolUsers.csv" -NoTypeInformation -Encoding UTF8 $Mailbox | Select-Object ($MailProps + $MailCalcProps) | Export-Csv ".\Mailboxes.csv" -NoTypeInformation -Encoding UTF8 $MailUser | Select-Object ($MailProps + $MailCalcProps) | Export-Csv ".\MailUsers.csv" -NoTypeInformation -Encoding UTF8 Write-HostLog -Message "Exported Users, MailUsers & Mailbox details in CSV`n" Write-HostLog -Message "Running discovery on Group accounts" $DistributionGroup = Get-DistributionGroup -ResultSize unlimited $UnifiedGroup = Get-UnifiedGroup -ResultSize unlimited Write-HostLog -Message "`nTotal Distribution Groups Found: $($DistributionGroup.count)" -Status "Success" Write-HostLog -Message "Total O365 Groups Found: $($UnifiedGroup.count)" -Status "Success" $GroupProps = @( 'DisplayName', 'BlockCredential', 'UserPrincipalName', 'UserType', 'ImmutableId' ) $GroupCalcProps = @( @{n = "EmailAddresses" ; e = {($_.EmailAddresses | Where-Object {$_ -ne $null}) -join '|' }} ) $DistributionGroup | Select-Object ($GroupProps + $GroupCalcProps) | Export-Csv ".\DistributionGroups.csv" -NoTypeInformation $UnifiedGroup | Select-Object ($GroupProps + $GroupCalcProps) | Export-Csv ".\O365Groups.csv" -NoTypeInformation Write-HostLog -Message "Exported Distribution Groups & O365 Groups details in CSV`n" } if ($FlipUPN) { $MsolUser = Get-MsolUser -All | Sort-Object -Property UserPrincipalName Write-HostLog -Message "`nTotal MsolUsers Found: $($MsolUser.count)" -Status "Success" $ConfirmCount = Read-Host "Do you want to split the count?:(y/n)" if ($ConfirmCount -eq 'y') { Write-HostLog "You need the 'StartNumber' and 'EndNumber' to split the accounts" Write-HostLog "################## FOR EXAMPLE ##############################" Write-HostLog "If you want to run for first 1000 users" Write-HostLog "Enter 'StartNumber' as '0' and 'EndNumber' as '999'`n" Write-HostLog "If you want to run for second 1000 users" Write-HostLog "Enter 'StartNumber' as '1000' and 'EndNumber' as '1999' and so on...`n" Write-HostLog "#############################################################`n" $StartNumber = Read-Host "Enter StartNumber" $EndNumber = Read-Host "Enter EndNumber" Write-HostLog -Message "`n" $MsolUser = $MsolUser[$StartNumber..$EndNumber] } if ($ConfirmCount -eq 'n' -or $ConfirmCount -eq 'y') { $i = 1 $Total = $MsolUser.count ForEach ($CurMsoluser in $MsolUser) { if ($CurMsoluser.UserPrincipalName -notlike $RoutingDomain) { $MsolProxyAddress = $CurMsoluser.UserPrincipalName.Split("@")[0] + $DomainSuffix try { Set-MsolUserPrincipalName -UserPrincipalName $($CurMsoluser.UserPrincipalName) -NewUserPrincipalName $MsolProxyAddress -ErrorAction Stop Write-HostProgress -Message "$($CurMsoluser.UserPrincipalName)" -Status "Success" -Total $Total -Count $i } catch { Write-HostProgress -Message "$($CurMsoluser.UserPrincipalName)" -Status "Failed" -Total $Total -Count $i } Start-Sleep -Seconds 2 } else { Write-HostLog -Message "No UPN Flip required: $($CurMsoluser.UserPrincipalName)" -Status "Neutral" } $i++ } } Write-HostLog -Message "`nMsolUsers Completed`n" } if ($FlipMailbox) { $Mailbox = Get-Mailbox -ResultSize Unlimited | Sort-Object -Property UserPrincipalName Write-HostProgress -Message "`nTotal Mailboxes Found: $($Mailbox.count)" -Status "Success" -Total $Total -Count $i $ConfirmCount = Read-Host "Do you want to split the count?:(y/n)" if ($ConfirmCount -eq 'y') { Write-HostLog "You need the 'StartNumber' and 'EndNumber' to split the accounts" Write-HostLog "################## FOR EXAMPLE ##############################" Write-HostLog "If you want to run for first 1000 users" Write-HostLog "Enter 'StartNumber' as '0' and 'EndNumber' as '999'`n" Write-HostLog "If you want to run for second 1000 users" Write-HostLog "Enter 'StartNumber' as '1000' and 'EndNumber' as '1999' and so on...`n" Write-HostLog "#############################################################`n" $StartNumber = Read-Host "Enter StartNumber" $EndNumber = Read-Host "Enter EndNumber" Write-HostLog -Message "`n" $Mailbox = $Mailbox[$StartNumber..$EndNumber] } if ($ConfirmCount -eq 'n' -or $ConfirmCount -eq 'y') { $i = 1 $Total = $Mailbox.count ForEach ($CurMailbox in $Mailbox) { if ($CurMailbox.PrimarySmtpAddress -notlike $RoutingDomain) { $NewPrimary = $CurMailbox.PrimarySmtpAddress.Split("@")[0] + $DomainSuffix try { Set-Mailbox -Identity $($CurMailbox.PrimarySmtpAddress) -WindowsEmailAddress $NewPrimary -ErrorAction Stop Write-HostProgress -Message "$($CurMailbox.PrimarySmtpAddress): $NewPrimary" -Status "Success" -Total $Total -Count $i } catch { Write-HostProgress -Message "$($CurMailbox.PrimarySmtpAddress): $NewPrimary" -Status "Failed" -Total $Total -Count $i } Start-Sleep -Seconds 2 } else { Write-HostLog -Message "No Primary Flip required: $($CurMailbox.PrimarySmtpAddress)" -Status "Neutral" } $i++ } } Write-HostLog -Message "`nMailboxes Completed`n" } if ($FlipMailUser) { $MailUser = Get-MailUser -ResultSize unlimited | Where-Object { $_.RecipientTypeDetails -ne "GuestMailUser" } | Sort-Object -Property UserPrincipalName Write-HostLog -Message "`nTotal MailUsers Found: $($MailUser.count)" -Status "Success" $ConfirmCount = Read-Host "Do you want to split the count?:(y/n)" if ($ConfirmCount -eq 'y') { Write-HostLog "You need the 'StartNumber' and 'EndNumber' to split the accounts" Write-HostLog "################## FOR EXAMPLE ##############################" Write-HostLog "If you want to run for first 1000 users" Write-HostLog "Enter 'StartNumber' as '0' and 'EndNumber' as '999'`n" Write-HostLog "If you want to run for second 1000 users" Write-HostLog "Enter 'StartNumber' as '1000' and 'EndNumber' as '1999' and so on...`n" Write-HostLog "#############################################################`n" $StartNumber = Read-Host "Enter StartNumber" $EndNumber = Read-Host "Enter EndNumber" Write-Host "`n" $MailUser = $MailUser[$StartNumber..$EndNumber] } if ($ConfirmCount -eq 'n' -or $ConfirmCount -eq 'y') { $i = 1 $Total = $MailUser.Count ForEach ($CurMailUser in $MailUser) { if ($CurMailUser.PrimarySmtpAddress -notlike $RoutingDomain) { $MailUsrPrimary = $CurMailUser.PrimarySmtpAddress.Split("@")[0] + $DomainSuffix Try { Set-MailUser -Identity $($CurMailUser.PrimarySmtpAddress) -WindowsEmailAddress $MailUsrPrimary -ErrorAction Stop Write-HostProgress -Message "$($CurMailUser.PrimarySmtpAddress)" -Status "Success" -Total $Total -Count $i } catch { Write-HostProgress -Message "$($CurMailUser.PrimarySmtpAddress)" -Status "Failed" -Total $Total -Count $i } Start-Sleep -Seconds 2 } else { Write-HostLog -Message "No Primary Flip Required: $($CurMailUser.PrimarySmtpAddress)" -Status "Neutral" } $i++ } } Write-HostLog -Message "`nMailUsers Completed`n" } if ($RemoveMbxProxy) { $Mailbox = Get-Mailbox -ResultSize Unlimited | Sort-Object -Property UserPrincipalName Write-HostLog -Message "`nTotal Mailboxes Found: $($Mailbox.count)" -Status "Success" $ConfirmCount = Read-Host "Do you want to split the count?:(y/n)" if ($ConfirmCount -eq 'y') { Write-HostLog "You need the 'StartNumber' and 'EndNumber' to split the accounts" Write-HostLog "################## FOR EXAMPLE ##############################" Write-HostLog "If you want to run for first 1000 users" Write-HostLog "Enter 'StartNumber' as '0' and 'EndNumber' as '999'`n" Write-HostLog "If you want to run for second 1000 users" Write-HostLog "Enter 'StartNumber' as '1000' and 'EndNumber' as '1999' and so on...`n" Write-HostLog "#############################################################`n" $StartNumber = Read-Host "Enter StartNumber" $EndNumber = Read-Host "Enter EndNumber" Write-HostLog -Message "`n" $Mailbox = $Mailbox[$StartNumber..$EndNumber] if ($ConfirmCount -eq 'n' -or $ConfirmCount -eq 'y') { $i = 1 $Total = $Mailbox.Count ForEach ($CurMailbox in $Mailbox) { if ($CurMailbox.PrimarySmtpAddress -like $RoutingDomain) { $ProxyAddress = $CurMailbox.EmailAddresses | Where-Object {$_ -notlike $WildCardDomain -and $_ -like "smtp*"} Write-HostLog -Message "`tAddresses Found for user $($CurMailbox.PrimarySmtpAddress): $($ProxyAddress.count)" -Status "Success" ForEach ($CurProxyAddress in $ProxyAddress) { try { Set-Mailbox -Identity $CurMailbox.PrimarySmtpAddress -EmailAddresses @{Remove = $CurProxyAddress} -ErrorAction Stop Write-HostProgress -Message "`t`tRemoving $CurProxyAddress " -Status "Success" -Total $Total -Count $i } catch { Write-HostProgress -Message "`t`tRemoving $CurProxyAddress " -Status "Failed" -Total $Total -Count $i } Start-Sleep -Seconds 2 } } $i++ } } Write-HostLog -Message "`nProxies removed from Mailboxes`n" } if ($RemoveMailUserProxy) { $MailUser = Get-MailUser -ResultSize unlimited | Where-Object {$_.RecipientTypeDetails -ne "GuestMailUser"} | Sort-Object -Property UserPrincipalName Write-HostLog -Message "`nTotal MailUsers Found: $($MailUser.count)" -Status "Success" $ConfirmCount = Read-Host "Do you want to split the count?:(y/n)" if ($ConfirmCount -eq 'y') { Write-HostLog "Please provide a 'StartNumber' and 'EndNumber' to split the accounts" Write-HostLog "################## FOR EXAMPLE ##############################" Write-HostLog "If you want to run for first 1000 users" Write-HostLog "Enter 'StartNumber' as '0' and 'EndNumber' as '999'`n" Write-HostLog "If you want to run for second 1000 users" Write-HostLog "Enter 'StartNumber' as '1000' and 'EndNumber' as '1999' and so on...`n" Write-HostLog "#############################################################`n" $StartNumber = Read-Host "Enter StartNumber" $EndNumber = Read-Host "Enter EndNumber" Write-HostLog -Message "`n" $MailUser = $MailUser[$StartNumber..$EndNumber] } if ($ConfirmCount -eq 'n' -or $ConfirmCount -eq 'y') { $i = 1 $Total = $MailUser.count ForEach ($CurMailUser in $MailUser) { if ($CurMailUser.PrimarySmtpAddress -like $RoutingDomain) { $MailUserProxy = $CurMailUser.EmailAddresses | Where-Object {$_ -notlike $WildCardDomain -and $_ -like "smtp*"} Write-HostLog -Message "`tDomains Found for user: $($MailUserProxy.count)" -Status "Success" ForEach ($CurMailProxy in $MailUserProxy) { try { Set-MailUser -Identity $CurMailUser.PrimarySmtpAddress -EmailAddresses @{Remove = $CurMailProxy} -ErrorAction Stop Write-HostProgress -Message "`t`tRemoving $CurMailProxy" -Status "Success" -Total $Total -Count $i } catch { Write-HostProgress -Message "`t`tRemoving $CurMailProxy" -Status "Failed" -Total $Total -Count $i } Start-Sleep -Seconds 2 } } $i++ Start-Sleep -Seconds 5 } } Write-HostLog -Message "`nProxies removed from MailUsers`n" } if ($FlipDLPrimary) { $DistributionGroup = Get-DistributionGroup -ResultSize unlimited | Sort-Object -Property PrimarySmtpAddress Write-HostLog -Message "`nTotal Distribution Groups Found: $($DistributionGroup.count)" -Status "Success" $i = 1 $Total = $DistributionGroup.Count ForEach ($CurDistributionGroup in $DistributionGroup) { if ($CurDistributionGroup.PrimarySmtpAddress -notlike $RoutingDomain) { $NewDLPrimary = $CurDistributionGroup.PrimarySmtpAddress.Split("@")[0] + $DomainSuffix try { Set-DistributionGroup -Identity $($CurDistributionGroup.PrimarySmtpAddress) -PrimarySmtpAddress $NewDLPrimary -ErrorAction Stop Write-HostProgress -Message "$($CurDistributionGroup.PrimarySmtpAddress)" -Status "Success" -Total $Total -Count $i } catch { Write-HostProgress -Message "$($CurDistributionGroup.PrimarySmtpAddress)" -Status "Failed" -Total $Total -Count $i } Start-Sleep -Seconds 2 } else { Write-HostLog -Message "No Primary Flip required: $($CurDistributionGroup.PrimarySmtpAddress)" -Status "Neutral" } $i++ } Write-HostLog -Message "`nFlipping Primary for Distribution Groups is Complete`n" } if ($FlipUGPrimary) { $UnifiedGroup = Get-UnifiedGroup -ResultSize unlimited | Sort-Object -Property PrimarySmtpAddress Write-HostLog -Message "`nTotal Office 365 Groups (Unified Groups) Found: $($UnifiedGroup.count)" -Status "Success" $i = 1 $Total = $UnifiedGroup.Count ForEach ($CurUnifiedGroup in $UnifiedGroup) { if ($CurUnifiedGroup.PrimarySmtpAddress -notlike $RoutingDomain) { $NewUGPrimary = $CurUnifiedGroup.PrimarySmtpAddress.Split("@")[0] + $DomainSuffix try { Set-UnifiedGroup -Identity $($CurUnifiedGroup.PrimarySmtpAddress) -PrimarySmtpAddress $NewUGPrimary -ErrorAction Stop Write-HostProgress -Message "$($CurUnifiedGroup.PrimarySmtpAddress)" -Status "Success" -Total $Total -Count $i } catch { Write-HostProgress -Message "$($CurUnifiedGroup.PrimarySmtpAddress)" -Status "Failed" -Total $Total -Count $i } Start-Sleep -Seconds 2 } else { Write-HostLog -Message "No Primary Flip required: $($CurUnifiedGroup.PrimarySmtpAddress)" -Status "Neutral" } $i++ } Write-HostLog -Message "`nFlipping Primary for O365 Groups is Complete`n" -Status "Success" } if ($RemoveUGProxy) { $UnifiedGroup = Get-UnifiedGroup -ResultSize unlimited | Sort-Object -Property PrimarySmtpAddress Write-HostLog -Message "`nTotal O365 Groups Found: $($UnifiedGroup.count)" -Status "Success" $i = 1 $Total = $UnifiedGroup.Count ForEach ($CurUnifiedGroup in $UnifiedGroup) { if ($CurUnifiedGroup.PrimarySmtpAddress -like $RoutingDomain) { $ProxyUGAddress = $CurUnifiedGroup.EmailAddresses | Where-Object { $_ -notlike $WildCardDomain -and $_ -like "smtp*" } Write-HostLog -Message "`tDomains Found for O365 Group $($CurUnifiedGroup.PrimarySmtpAddress): $($ProxyUGAddress.count)" -Status "Success" ForEach ($CurProxyUGAddress in $ProxyUGAddress) { try { Set-UnifiedGroup -Identity $CurUnifiedGroup.PrimarySmtpAddress -EmailAddresses @{Remove = $CurProxyUGAddress} -ErrorAction Stop Write-HostProgress -Message "t`tRemoving $CurProxyUGAddress" -Status "Success" -Total $Total -Count $i } catch { Write-HostProgress -Message "t`tRemoving $CurProxyUGAddress" -Status "Failed" -Total $Total -Count $i } Start-Sleep -Seconds 2 } } $i++ } Write-HostLog -Message "`nProxies removal task from O365 Groups is Complete`n" } if ($RemoveDLProxy) { $DistributionGroup = Get-DistributionGroup -ResultSize unlimited | Sort-Object -Property PrimarySmtpAddress Write-HostLog -Message "`nTotal Distribution Groups Found: $($DistributionGroup.count)" -Status "Success" $Total = $DistributionGroup.Count ForEach ($CurDistributionGroup in $DistributionGroup) { if ($CurDistributionGroup.PrimarySmtpAddress -like $RoutingDomain) { $ProxyDLAddress = $CurDistributionGroup.EmailAddresses | Where-Object { $_ -notlike $WildCardDomain -and $_ -like "smtp*" } Write-HostLog -Message "`tDomains Found for DL $($CurDistributionGroup.PrimarySmtpAddress): $($ProxyDLAddress.count)" -Status "Success" ForEach ($CurProxyDLAddress in $ProxyDLAddress) { try { Set-DistributionGroup -Identity $CurDistributionGroup.PrimarySmtpAddress -EmailAddresses @{Remove = $CurProxyDLAddress} -ErrorAction Stop Write-HostProgress -Message "t`tRemoving $CurProxyDLAddress" -Status "Success" -Total $Total -Count $i } catch { Write-HostProgress -Message "t`tRemoving $CurProxyDLAddress" -Status "Failed" -Total $Total -Count $i } Start-Sleep -Seconds 2 } } $i++ } Write-HostLog -Message "`nProxies removal task from Distribution Groups is Complete`n" -Status "Success" } } } |