\N^(?i).+executable\N : warn deny : Attachment with suspicious Content-Type found ($mime_content_type) application/x-msdos-program : warn deny : Attachment with suspicious Content-Type found ($mime_content_type) application/x-msdownload : warn deny : Attachment with suspicious Content-Type found ($mime_content_type) application/hta : warn deny : Attachment with suspicious Content-Type found ($mime_content_type) application/x-javascript : warn deny : Attachment with suspicious Content-Type found ($mime_content_type) application/javascript : warn deny : Attachment with suspicious Content-Type found ($mime_content_type) text/javascript : warn deny : Attachment with suspicious Content-Type found ($mime_content_type) application/x-msi : warn deny : Attachment with suspicious Content-Type found ($mime_content_type)