4.cn
The domain 4.cn answers at IP address 69.234.239.50. Mail for 4.cn goes through 1 servers; the highest priority one is mail.tutanota.de. It also publishes 5 TXT records, used to verify domain ownership with external services and to configure mail security through SPF, DKIM and DMARC.
A A records
MX MX records
- 10 mail.tutanota.de 600s
NS NS records
- vip4.alidns.com 21600s
- vip3.alidns.com 21600s
TXT TXT records
- v=spf1 include:spf.tutanota.de -all 600s
- t-verify=89ffdcb4e2e1d153eb5e018a03d3a8a9 600s
- v=spf1 include:mailgun.org ~all 600s
- v=spf1 include:spf1.dm.aliyun.com -all 600s
- google-site-verification=pVWTtlccvil-QpeXyjIxnTgjkilaa5ohh4uyueBGEKM 600s
SOA SOA records
- vip3.alidns.com 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 3 hours ago.