sina.cn
The domain sina.cn answers at IP address 36.51.224.192. Mail for sina.cn goes through 3 servers; the highest priority one is freemx1.sinamail.sina.com.cn. It also publishes 1 TXT records, used to verify domain ownership with external services and to configure mail security through SPF, DKIM and DMARC.
A A records
- 36.51.224.192 60s
MX MX records
- 10 freemx1.sinamail.sina.com.cn 600s
- 10 freemx2.sinamail.sina.com.cn 600s
- 10 freemx3.sinamail.sina.com.cn 600s
NS NS records
- ns3.sina.com.cn 21600s
- ns2.sina.com.cn 21600s
- ns1.sina.com.cn 21600s
TXT TXT records
- v=spf1 include:spf.sinamail.sina.com.cn -all 600s
SOA SOA records
- ns1.sina.com.cn 600s
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 10 hours ago.