$firstname = get-content C:\Script\firstnames
$lastname = get-content C:\Script\lastnames
$OU = "OU=Gothenburg,OU=Users,OU=LAB,DC=ad,DC=lab,DC=se", "OU=Stockholm,OU=Users,OU=LAB,DC=ad,DC=lab,DC=se", "OU=Malmo,OU=Users,OU=LAB,DC=ad,DC=lab,DC=se"
$suffix = "lab.se"
$department = "Sales", "Marketing", "Production", "Managers"

if
(get-adforest | ? UPNsuffixes -eq $suffix) {Write-Host "UPN Suffix $suffix already existing" -ForegroundColor Red}

else {
set-adforest -upnsuffixes @{add=$suffix} -Identity LAB
Write-host "Created the suffix $suffix successfully" -ForegroundColor Green
}


1..1000 | % {

$randomOU = $OU | Get-Random
$Randomfname = $firstname | Get-Random
$Randomlname = $lastname | Get-Random
$Randomfullname = $randomfname+" "+$randomlname
$Randomdepartment = $department | Get-Random
$UPN = $Randomfname.ToLower()+"."+$Randomlname.ToLower()+"@"+$suffix

$randomyear = 53..99 | get-random
$samaccountname = $Randomfname.substring(0,3)+$Randomlname.substring(0,3)+$randomyear
$PrimaryProxyaddress = "SMTP:"+$UPN
$SecondaryAddress = "smtp:"+$samaccountname+$suffix

$securepassword = ConvertTo-SecureString -string "P@ssw0rd" -AsPlainText -force

Write-Host "Creating user $Randomfullname with $UPN" -ForegroundColor Green


$ADuser = New-ADuser `
-name $Randomfullname `
-AccountPassword $securepassword `
-Enabled:$true `
-path $randomOU `
-UserPrincipalName "$UPN" `
-samaccountname $samaccountname `
-DisplayName $Randomfullname `
-GivenName $Randomfname `
-Surname $Randomlname `
-emailaddress $UPN `
-department $Randomdepartment `
-Passthru

Set-ADUser $ADuser -Add @{Proxyaddresses=$PrimaryProxyaddress,$SecondaryAddress}

}