据统计大约80%的病毒感染是由电子邮件所造成的,一个安全系统的首要任务就是阻止病毒通过电子邮件与附件入侵。电子邮件进出企业网络的唯一通道就是网关,如何保护网关成为阻挡病毒进入企业网络的第一道关卡。网关是第一道门网关是企业网络连接到另一个网络的关口,企业所有与外 According to statistics, about 80% of the virus infections are caused by emails. The primary task of a security system is to prevent the virus from invading through emails and attachments. The only way e-mail goes in and out of the corporate network is the gateway, and protecting the gateway becomes the first hurdle to stop the virus from entering the corporate network. Gateway is the first gate Gateway is the gateway to connect another enterprise network, all enterprises and outside