Operated and managed by CNIC, China Science and Technology Network (CSTNET) keeps on upgrading its infrastructure and providing a stable and safe operation for its users.
By the end of 2015, E-mail system had covered 142 institutes, 31 laboratories & research groups and 14 companies with the total number of mailboxes reaching over 247,000. It received and sent nearly 500,000 e-mails each day on average, filtered spam mails over one million everyday, and even over 1.3 million in the peak hours, and spam filtering rate remained at above 90%. The mail system was upgraded for 42 times in total, and all maintenances were made in non-working hours. It carried out log analysis every day and centralized governance quarterly, handled 4621 weak password accounts totally, and sent more than 700 handling e-mails to the institutes’ administrator. It continued the specially guaranteed service for VIPs and actively assisted the mass mailing and promotion for important materials such as 30 issues of Sound of Chinese Academy of Sciences, 12 issues of CAS Newsletter, and 12 issues of the security patch notifications.
statistical graph for units and users of the email system