Hi I'm using IIS as an SMTP relay server at the gateway and currently have Sophos Puremessage on it. It scans and then forwards the inbound/oubound email. For example, Puremessage can block SMTP email based on file name, file type or subject line and also has Outbreak Protection that blocks an email sent to more than X number of recipients. I think it also blocks X number of emails in X time etc. Is there an SMTP component to NOD32 that does similar? Or will the server version just scan email as it passes through the inbound/oubound folders? Regards, Ed.