pku.edu.cn
The domain pku.edu.cn answers at IP address 162.105.131.160. Mail for pku.edu.cn goes through 2 servers; the highest priority one is mx-pku-edu-cn.icoremail.net. It also publishes 2 TXT records, used to verify domain ownership with external services and to configure mail security through SPF, DKIM and DMARC.
A A records
- 162.105.131.160 300s
MX MX records
- 5 mx-pku-edu-cn.icoremail.net 82s
- 10 gateway.pku.edu.cn 82s
NS NS records
- DNS1.pku.edu.cn 140s
- DNS2.pku.edu.cn 140s
- ns.pku.edu.cn 140s
- DNS3.pku.edu.cn 140s
TXT TXT records
- v=spf1 ip4:162.105.129.0/24 include:spf.icoremail.net -all 21600s
- cf95911d8f72efa4f04023bb828a06bf3c568fe15cb518255362cdc697739f73 21600s
SOA SOA records
- ns.pku.edu.cn 300s
What each record means
- A and AAAA: the server IP address, in IPv4 and IPv6.
- MX: the servers that receive the domain mail. The number is the priority; the lowest is tried first.
- NS: the name servers, which have the final say over the domain DNS.
- TXT: free text. Mostly used for SPF, DKIM and DMARC, and to verify ownership with third parties.
- TTL: how many seconds the record may be cached before asking again.
Checked 9 hours ago.