The request / response that are contrary to the Web firewall security policies have been blocked.

Detect time	2025-12-28 09:55:13
Detect client IP	216.73.216.20
Detect URL	https://www.ganghwa.go.kr/101.9.253.188:80'/zmail/servlet/com.zettasoft.a_biz.mail.readmail.checkreading