Public/Domain/Remove-365Domain.ps1
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function Remove-365Domain { <# .SYNOPSIS Used to remove an Office 365 Domain by flipping Primaries and UPNs to onmicrosoft addresses For removal of secondary proxy addresses use Remove-MailboxAddress, Remove-GroupAddress and Remove-UnifiedGroupAddress Each has proper PS help. .DESCRIPTION Used to remove an Office 365 Domain by flipping Primaries and UPNs to onmicrosoft addresses .PARAMETER FlipMailbox Parameter description .PARAMETER FlipMailUser Parameter description .PARAMETER FlipUPN Parameter description .PARAMETER FlipDLPrimary Parameter description .PARAMETER FlipUGPrimary Parameter description .PARAMETER RoutingDomain For example: "contoso.onmicrosoft.com" .PARAMETER DomainSuffix For example: "contoso.onmicrosoft.com" .PARAMETER WildCardDomain For example: "*.onmicrosoft.com" .EXAMPLE Remove-365Domain -FlipUPN -RoutingDomain 'contoso.onmicrosoft.com' -DomainSuffix 'contoso.onmicrosoft.com' -WildCardDomain "*.onmicrosoft.com" .EXAMPLE Remove-365Domain -FlipMailbox -RoutingDomain 'contoso.onmicrosoft.com' -DomainSuffix 'contoso.onmicrosoft.com' -WildCardDomain "*.onmicrosoft.com" .NOTES For removal of secondary proxy addresses use Remove-MailboxAddress, Remove-GroupAddress and Remove-UnifiedGroupAddress. each has proper PS help. #> param ( [Parameter()] [switch] $FlipMailbox, [Parameter()] [switch] $FlipMailUser, [Parameter()] [switch] $FlipUPN, [Parameter()] [switch] $FlipDLPrimary, [Parameter()] [switch] $FlipUGPrimary, [Parameter(Mandatory)] [string] $RoutingDomain, [Parameter(Mandatory)] [string] $DomainSuffix, [Parameter(Mandatory)] [string] $WildCardDomain ) if ($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 = '{0}@{1}' -f $CurMsoluser.UserPrincipalName.Split("@")[0], $DomainSuffix try { Set-MsolUserPrincipalName -ObjectId $($CurMsoluser.ObjectId).ToString() -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-EXOMailbox -ResultSize Unlimited | Sort-Object -Property UserPrincipalName $Total = ($Mailbox).count 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 = '{0}@{1}' -f $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 $_.Exception.Message } 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 = '{0}@{1}' -f $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 $_.Exception.Message } Start-Sleep -Seconds 2 } else { Write-HostLog -Message "No Primary Flip Required: $($CurMailUser.PrimarySmtpAddress)" -Status "Neutral" } $i++ } } Write-HostLog -Message "`nMailUsers Completed`n" } if ($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 = '{0}@{1}' -f $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 $_.Exception.Message } 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 = '{0}@{1}' -f $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 $_.Exception.Message } 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" } } |