internal/functions/Convert-Source.ps1
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Function Convert-Source { <# .SYNOPSIS Function to convert RemoteMailbox to MailUser and update the targetAddress to destination. .DESCRIPTION This function is called by Update-T2TPostMigration function through -Source param. Basically we need to save a bunch of Exchange attributes before the convertion, as there is no easy way to do that in a supported we must disable the remotemailbox and enable the MEU, but doing so all Exchange attributes will be deleted so the function needs to re-assign. .EXAMPLE PS C:\> Convert-Source The following example run this function. #> # region local variables $MigratedUsersImportCheck = Get-CSVStatus -UsersMigrated if ($MigratedUsersImportCheck -eq 0) {Break} if ($SnapshotPath) {$outFile = "$SnapshotPath"} else {$outFile = "$home\desktop\"} [int]$UsersCount = ($updatelist | Measure-Object).count [int]$counter = 0 $Properties = @( 'extensionAttribute1' 'extensionAttribute2' 'extensionAttribute3' 'extensionAttribute4' 'extensionAttribute5' 'extensionAttribute6' 'extensionAttribute7' 'extensionAttribute8' 'extensionAttribute9' 'extensionAttribute10' 'extensionAttribute11' 'extensionAttribute12' 'extensionAttribute13' 'extensionAttribute14' 'extensionAttribute15' ) # region loop each user foreach ($i in $updatelist) { $counter++ Write-Progress -Activity "Converting RemoteMailbox to MEU and changing ExternalEmailAddress" -Status "Working on $($i.ExternalEmailAddress)" -PercentComplete ($counter * 100 / $UsersCount) if ($i.MoveRequestStatus -eq 'Completed') { # save user properties to $user variable before disable remote mailbox try { if ($SnapshotToXML.IsPresent) { $user = Get-RemoteMailbox -Identity $i.Alias -ErrorAction Stop if ($?) { $user | Export-Clixml -Path "$outFile\$($i.Alias).xml" -Force -Confirm:$false } } else { $user = Get-RemoteMailbox -Identity $i.Alias -ErrorAction Stop } # save custom attributes to $aduser variable if ($LocalMachineIsNotExchange.IsPresent -and $Null -eq $LocalAD) { $aduser = Get-RemoteADUser $i.Alias -Server $PreferredDC -Properties $Properties -ErrorAction Stop } else { $aduser = Get-ADUser $i.Alias -Server $PreferredDC -Properties $Properties -ErrorAction Stop } } catch { Write-PSFMessage -Level Output -Message "The RemoteMailbox $($i.PrimarySMTPAddress) was not found." } # disable remote mailbox if ($user) { Disable-RemoteMailbox -Identity $i.Alias -IgnoreLegalHold -Confirm:$false if ($?) { Write-PSFMessage -Level Output -Message "RemoteMailbox $($i.PrimarySMTPAddress) successfully converted to MailUser." # if both -UseMOERATargetAddress and -KeepOldPrimarySMTPAddress are present, object should be like this: # PrimarySMTPAddress: bill@source.com # ExternalEmailAddress: bill@destination.mail.onmicrosoft.com if ($UseMOERATargetAddress.IsPresent -and $KeepOldPrimarySMTPAddress.IsPresent) { [void](Enable-MailUser -Identity $i.Alias -ExternalEmailAddress $i.ExternalEmailAddress -PrimarySMTPAddress $user.PrimarySmtpAddress) } # if -UseMOERATargetAddress is preset, object should be like this: # PrimarySMTPAddress: bill@destination.mail.onmicrosoft.com # ExternalEmailAddress: bill@destination.mail.onmicrosoft.com elseif ($UseMOERATargetAddress.IsPresent) { [void](Enable-MailUser -Identity $i.Alias -ExternalEmailAddress $i.ExternalEmailAddress) } # if -KeepOldPrimarySMTPAddress is preset, object should be like this: # PrimarySMTPAddress: bill@source.com # ExternalEmailAddress: bill@destination.com elseif ($KeepOldPrimarySMTPAddress.IsPresent) { [void](Enable-MailUser -Identity $i.Alias -ExternalEmailAddress $i.PrimarySMTPAddress -PrimarySMTPAddress $user.PrimarySmtpAddress) } # everything else should be like this: # PrimarySMTPAddress: bill@destination.com # ExternalEmailAddress: bill@destination.com else { [void](Enable-MailUser -Identity $i.Alias -ExternalEmailAddress $i.PrimarySMTPAddress) } # convert legacyDN to X500 and set proxyAddresses $x500 = "x500:" + $user.legacyExchangeDN $proxy = $user.EmailAddresses $ProxyArray = @() $ProxyArray = $Proxy -split "," -replace "SMTP:","smtp:" $ProxyArray = $ProxyArray + $x500 Set-MailUser -Identity $i.Alias -EmailAddresses @{Add=$ProxyArray} -HiddenFromAddressListsEnabled $user.HiddenFromAddressListsEnabled # if there were custom attribues before, readd 'em all $Replace = @{} foreach ($element in $Properties) { if ($aduser.$element) { $Replace.Add($element,$aduser.$element) } } # replace only if there is a Custom Attribute being used if ($Replace.Count -gt 0 -and $LocalMachineIsNotExchange.IsPresent -and $Null -eq $LocalAD) { Set-RemoteADUser -Identity $i.Alias -Server $PreferredDC -Replace $Replace } elseif ($Replace.Count -gt 0) { Set-ADUser -Identity $i.Alias -Server $PreferredDC -Replace $Replace } } } } } # region clean up variables and sessions Disconnect-ExchangeOnline -Confirm:$false -InformationAction Ignore -ErrorAction SilentlyContinue Get-PSSession | Remove-PSSession Remove-Variable * -ErrorAction SilentlyContinue } |