mimespaces.cn - dns.ninja
mimespaces.cn
| DNSSEC | ⚠️ Not signed | ||||||
| NS | dnsa.mimecast.com ⭐ | ||||||
| A | 216.145.218.40🇺🇸 MimecastSA216.145.218.0/24 191 Spring St Lexington MA 02421 United States | ||||||
| NS | dnsb.mimecast.com | ||||||
| A | 216.145.222.40🇺🇸 MimecastSA216.145.222.0/24 191 Spring St Lexington MA 02421 United States | ||||||
| TXT | v=spf1 include:eu._netblocks.mimecast.com -all | ||||||
| SOA | dnsa.mimecast.comdns-admin@mimecast.com serial=1750939680 | ||||||
cn
| DNSSEC | ⚠️ Not signed | ||||||
| NS | a.dns.cn ⚠️ Not in zone NS records | ||||||
| NS | b.dns.cn ⚠️ Not in zone NS records | ||||||
| NS | c.dns.cn ⚠️ Not in zone NS records | ||||||
| NS | d.dns.cn ⚠️ Not in zone NS records | ||||||
| NS | e.dns.cn ⚠️ Not in zone NS records | ||||||
Same first word
DNS History
7 records (2 active, 5 former)
●NSdnsa.mimecast.com2026-05-25 → 2026-08-04 · 3 obs
● 2026-05-25 10:43:12
● 2026-08-04 14:09:52
●NSdnsb.mimecast.com2026-05-25 → 2026-08-04 · 3 obs
● 2026-05-25 10:43:12
● 2026-08-04 14:09:52
○NSns1.instradns.com2015-06-25 → 2018-07-15 · 4 obs
● 2018-07-15 16:28:10
○ 2026-05-25 10:43:12
○ 2026-08-04 14:09:52
○NSns2.instradns.com2015-06-25 → 2018-07-15 · 4 obs
● 2018-07-15 16:28:10
○ 2026-05-25 10:43:12
○ 2026-08-04 14:09:52
○NSns3.instradns.com2015-06-25 → 2018-07-15 · 4 obs
● 2018-07-15 16:28:10
○ 2026-05-25 10:43:12
○ 2026-08-04 14:09:52
○MXmail.mimespaces.cn2015-06-25 → 2018-07-15 · 4 obs
● 2018-07-15 16:28:10
○ 2026-05-25 10:43:12
○ 2026-08-04 14:09:52
○A184.95.38.1972015-06-25 → 2018-07-15 · 4 obs
● 2018-07-15 16:28:10
○ 2026-05-25 10:43:12
○ 2026-08-04 14:09:52
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | e.dns.cn, a.dns.cn, c.dns.cn, d.dns.cn... | - |
| mimespaces.cn | dnsa.mimecast.com, dnsb.mimecast.com | - |
✅ Authoritative Response
Server:216.145.218.40
NS records: dnsa.mimecast.com, dnsb.mimecast.com
🔒 DNSSEC Status
❌ Bogus (DNSSEC validation failed)
Validation error at mimespaces.cn: Error: DNS query timeout: 203.119.29.1 for DS mimespaces.cn
⏱️ Timing
Total: 3832ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 2 | dnsb.mimecast.com, dnsa.mimecast.com |
| TXT | 1 | v=spf1 include:eu._netblocks.mimecast.co |
| SOA | 1 | dnsa.mimecast.com dns-admin.mimecast.com |
Analysis
Name Servers
mimespaces.cn is delegated to two name servers: dnsa.mimecast.com and dnsb.mimecast.com.
mimespaces.cn has the same name server delegation as a number of other domains, such as mimecats.com, mimecastqa.net, mirncast.com and two more.
There is at least partial name server overlap between mimespaces.cn and other domains — acervus.nl, senderscore.eu, dmarcscore.com and two more among them.
These name servers are routinely deployed together with the name servers dns01.mimecast.com.
dnsa.mimecast.com → 216.145.218.40 and dnsb.mimecast.com → 216.145.222.40: one IP number per host name.