Enable 2048-bit DKIM in Office 365 script

Invoke-O365DKIMEnable.ps1

try{
    Connect-ExchangeOnline -ErrorAction Stop
} catch {
    Throw "Failed to logon to Exchange Online"
}

$dkim = Get-DkimSigningConfig

foreach($obj in $dkim){
    Write-Host "Enabling 2048-bit DKIM for $($obj.Domain)" -ForegroundColor Green
    Write-Verbose "Enable - DKIM" -Verbose
    Set-DkimSigningConfig -Identity $($obj.Domain) -Enabled $true
    if($obj.Enabled){
        Write-Verbose "Rotating key to 2048-bit" -Verbose
        Rotate-DkimSigningConfig -KeySize 2048 -Identity $($obj.Domain)
    }
    Write-Output " "
    pause
}