Mail Flow

This code sample retrieves the following parameters of an Exchange mailbox:

Delivery Options
- Forward to
- Deliver message to both forwarding address and mailbox
- Recipients limits
Message Size Restrictions
- Maximum receiving message size
- Maximum sending message size
Message Delivery Restrictions
- Accept messages from
- Reject messages from

In the below code sample, the $mailboxParams variable represents properties of an Exchange mailbox. To retrieve the properties, use the IAdmExchangeMailParametersOps::GetMailParameters method.

How

[Reflection.Assembly]::LoadWithPartialName("Softerra.Adaxes.Adsi")

# Connect to the Adaxes service
$ns = New-Object "Softerra.Adaxes.Adsi.AdmNamespace"
$service = $ns.GetServiceDirectly("localhost")

# Bind to the user
$userDN = "CN=John Smith,CN=Users,DC=domain,DC=com"
$user = $service.OpenObject("Adaxes://$userDN", $null, $null, 0)

# Get Exchange properties
$mailboxParams = $user.GetMailParameters()

# The $mailboxParams variable represents properties of an Exchange mailbox

# Get 'Delivery Options'
$deliveryOptions = $mailboxParams.MailFlowSettings.DeliveryOptions

# Forward to
$forwardTo = $deliveryOptions.ForwardingAddress.DisplayName
Write-host "Mail forwarding: " -NoNewline
if ($forwardTo -ne $null)
{
    Write-Host "Enabled"
    Write-host "`tForward to: $forwardTo"
    
    # Deliver message to both forwarding address and mailbox
    Write-Host "`tDeliver message to both forwarding address and mailbox:" `
        $deliveryOptions.DeliverToMailboxAndForward
}
else
{
    Write-Host "Disabled"
}

# Recipients limits
$recipientsLimits = $deliveryOptions.RecipientLimits
Write-Host "Recipients limits: " -NoNewline
if ($recipientsLimits -eq -1)
{
    Write-Host "Unlimited"
}
else
{
    Write-Host $recipientsLimits
}

# Get 'Message Size Restrictions'
$messageSizeRestrictions = $mailboxParams.MailFlowSettings.MessageSizeRestrictions

# Maximum receiving message size
$maxReceiveSize = $messageSizeRestrictions.MaxReceiveSize
Write-Host "Maximum receiving message size: " -NoNewline
if ($maxReceiveSize -ne $null)
{
    Write-Host $maxReceiveSize.GetKBytes()
}
else
{
    Write-Host "Unlimited"
}

# Maximum sending message size
$maxSendSize = $messageSizeRestrictions.MaxSendSize
Write-Host "Maximum sending message size: " -NoNewline
if ($maxSendSize -ne $null)
{
    Write-Host $maxSendSize.GetKBytes()
}
else
{
    Write-Host "Unlimited"
}

# Get 'Message Delivery Restrictions'
$messageDeliveryRestrictions = $mailboxParams.MailFlowSettings.MessageDeliveryRestrictions

# Get list of accepted senders
$acceptMessagesFrom = $messageDeliveryRestrictions.AcceptMessagesOnlyFrom

# Accept messages only from senders inside my organization
$requireSenderAuthentication = $messageDeliveryRestrictions.RequireSenderAuthentication

if (($acceptMessagesFrom.Count -eq 0) -and (-not($requireSenderAuthentication)))
{
    Write-Host "Accept messages from: All senders"
}
elseif ($requireSenderAuthentication)
{
    Write-Host "Accept messages from: Only senders inside my organization"
}
else
{
    Write-Host "Accept messages from the following senders only:"
    for ($i = 0; $i -lt $acceptMessagesFrom.Count; $i++)
    {
        $object = $acceptMessagesFrom.GetItem($i, [ref]"ADS_PROPERTY_NONE")
        Write-host "`t" $object.DisplayName
    }
}

# Get list of rejected senders
$rejectMessagesFrom = $messageDeliveryRestrictions.RejectMessagesFrom
if ($rejectMessagesFrom.Count -eq 0)
{
    Write-Host "Reject messages from: No senders"
}
else
{
    Write-Host Reject messages from:"
    for ($i = 0; $i -lt $rejectMessagesFrom.Count; $i++)
    {
        $object = $rejectMessagesFrom.GetItem($i, [ref]"ADS_PROPERTY_NONE")
        Write-host "`t" $object.DisplayName
    }
}

Mail Flow

See also