WASP from GWAVA resides on the GroupWise WebAccess server and actively watches for files being uploaded through the WebAccess Gateway. When it detects an email file attachment being uploaded, it delays the delivery of the file and passes the attachment to an Anti-Virus software solution. The A/V software scans the attachment for viruses. Clean files are then delivered to the GroupWise Post Office, while infected files are removed from the server and a notification is sent that the file was infected.