17u.cn
The domain 17u.cn answers at IP address 202.90.20.133. Mail for 17u.cn goes through 4 servers; the highest priority one is mailmx2.ly.com. It also publishes 9 TXT records, used to verify domain ownership with external services and to configure mail security through SPF, DKIM and DMARC.
A A records
- 202.90.20.133 100s
MX MX records
- 5 mailmx2.ly.com 100s
- 10 mailmx4.ly.com 100s
- 15 mailmx3.ly.com 100s
- 20 mailmx1.ly.com 100s
NS NS records
- ns1.dnsv5.com 21600s
- ns2.dnsv5.com 21600s
TXT TXT records
- _globalsign-domain-verification=a07lhjqVnSfj3KK9SOBSDWyzQEojcAMb0U_sz_ven- 600s
- hkzsw03ml73s8g0s9s93vjslnz4fs96h 600s
- _globalsign-domain-verification=QKmIrgbNwcd9_7joENaZ9SwMGL5rwknrF9bxgS29f8 600s
- c6t4n12p37l8cp5dn5q8l5698xmmcgrw 600s
- 7nxtqpk7d71m81yjhlfwhwncrlz86pcq 600s
- _globalsign-domain-verification=7-WgheXB5nhp1OX7kppbzYyghhVtRSXRB9dAdWg2UZ 600s
- v=spf1 include:spf.mail.17u.cn ~all 600s
- RbH/oh7M6JHUQ/3zlZIn5Oq6NNOjLvvnWHa8hebPrtI= 600s
- google-site-verification=DQJl5uL8r_tfec17Ukw2VFr9HxfxRUSxin3qKY1lNFo 600s
SOA SOA records
- ns1.dnsv5.com 180s
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 3 hours ago.