Hi Team We have some isue with our Appliance, We receive all incoming mail with tag  WARNING : A/V UNSCANNABLE, Also when we try to see the tags with client Outlook we found ==> X-IronPort-AV: E=Sophos;i="unknown";   e="0x0't"; a="129425", So unknown...

Hi Teams, Please, We have Cisco Email Security Appliance C190 (10.0.0.25) - We configured for one domain trusted in the sender whitelist, But the emails are blocked what should I check please  regards