ntnu.edu.tw.		30 IN SOA cc.ntnu.edu.tw. sysadm.ntnu.edu.tw. (
				2024041801 ; serial
				21600      ; refresh (6 hours)
				7200       ; retry (2 hours)
				2419200    ; expire (4 weeks)
				21600      ; minimum (6 hours)
				)

ntnu.edu.tw.		30 IN TXT "v=spf1 a mx ip4:140.122.65.0/24 include:_spf.google.com
~all"
ntnu.edu.tw.		30 IN TXT "v=spf1 ip4:140.122.65.0/24
include:_spf.protection.outlook.com include:_spf.google.com ~all"

Mail exchangers:
ntnu.edu.tw.		30 IN MX 20 mg153.ntnu.edu.tw.
ntnu.edu.tw.		30 IN MX 10 mg155.ntnu.edu.tw.
ntnu.edu.tw.		30 IN MX 10 mg156.ntnu.edu.tw.

Name servers:
ntnu.edu.tw.		30 IN NS cc.ntnu.edu.tw.
ntnu.edu.tw.		30 IN NS ns2.ntnu.edu.tw.
ntnu.edu.tw.		30 IN NS dns3.ntnu.edu.tw.
ntnu.edu.tw.		30 IN NS dns4.ntnu.edu.tw.