first audit
2.After the first audit from EASA, 14 employees have received an internal permit to fill the work order, including Zhao Weiyan, Lin hang, Zhou Xingbang, Gong Jianxue, Wang Yiwen, Song Changchuan, Wang Hailu, Zhang Aijing, Hu Yiqiang, Ma Quanxing, Liu Chunguan, Zhang Zhongbao, Wang Fan and Ma Qiang etc.
6.At first this paper analyzes the technical requirements of the E-mail system management,then, it explains the problems about the E-mail system management in details, such as E-mail classification and retention, audit, storage, security,e-mail delivery, content filtering, access authorization, denial-of-service prevention and virus control etc. , and gives the homologous management strategies.

