Recipient verification on Exchange 2013 SP1

Hello,

we use 3rd party tool for antispam and I'm unable to configure recipient verification on Exchange 2013 with SP1.

Basically i have done all steps described in article http://technet.microsoft.com/en-us/library/bb125187.aspx and still i am able to send mail to non existent users (Exchange sends NDR)

My recipient filter config looks like this:

RunspaceId                 : a4ec4d9b-a68d-43e2-beb9-c397505d1321
Name                       : RecipientFilterConfig
BlockedRecipients          : {}
RecipientValidationEnabled : True
BlockListEnabled           : True
Enabled                    : True
ExternalMailEnabled        : True
InternalMailEnabled        : True
AdminDisplayName           :
ExchangeVersion            : 0.1 (8.0.535.0)
DistinguishedName          : CN=RecipientFilterConfig,CN=Message Hygiene,CN=Transport
                             Settings,CN=secureemail,CN=Microsoft
                             Exchange,CN=Services,CN=Configuration,DC=domain,DC=priv
Identity                   : RecipientFilterConfig
Guid                       : d34e78fa-bc92-44db-80bb-85e300135422
ObjectCategory             : domain.priv/Configuration/Schema/ms-Exch-Message-Hygiene-Recipient-Filter-Config
ObjectClass                : {top, msExchAgent, msExchMessageHygieneRecipientFilterConfig}
WhenChanged                : 30/04/2014 10:29:43 AM
WhenCreated                : 01/10/2011 12:34:08 PM
WhenChangedUTC             : 30/04/2014 2:29:43 PM
WhenCreatedUTC             : 01/10/2011 4:34:08 PM
OrganizationId             :
OriginatingServer          : server01.domain.priv
IsValid                    : True
ObjectState                : Unchanged

I have allowed anonymous connection on default connector.

Also, transport agent is enabled.

My problem is that mail gets in queue even i don't wanna this to happen.

Any advice is more then welcome.

Thanks,

Ivica