鸿雁电子邮件系统电信解决方案1概述...........................................................................................................................................22电信对邮件系统的基本要求...................................................................................................22.1系统的扩展性...........................................................................................................22.2管理的方便性...........................................................................................................32.3使用的方便性...........................................................................................................32.4灵活的资源限制.......................................................................................................32.5大容量.......................................................................................................................32.6灾难性恢复...............................................................................................................33鸿雁产品介绍...........................................................................................................................43.1简介...........................................................................................................................43.2功能特点...................................................................................................................43.2.1自动负载均衡...................................................................................................43.2.2多级垃圾邮件过滤...........................................................................................53.2.3邮件用户与系统用户分离...............................................................................53.2.4SMTP认证.......................................................................................................53.2.5支持SSL数据加密传输..................................................................................53.2.6提供防病毒接口............................................................................