mentormail.com - dns.ninja
mentormail.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 216.158.44.21🇺🇸 AS6372216.158.0.0/18 DCA Net | ||||||
| PTR | web1.dca.net | ||||||
| NS | ns1.dca.net ⭐ | ||||||
| A | 207.245.84.201🇺🇸 AS6372207.245.64.0/18 DCA Net | ||||||
| PTR | ns1.dca.net | ||||||
| NS | ns2.dca.net | ||||||
| A | 207.245.82.2🇺🇸 AS6372207.245.64.0/18 DCA Net | ||||||
| PTR | ns2.dca.net | ||||||
| MX | scrubber.dca.net ⭐ | ||||||
| A | 216.158.48.62🇺🇸 AS6372216.158.48.0/24 | ||||||
| PTR | scrubber.dca.net | ||||||
| SOA | ns1.dca.nethostmaster@dca.net 2018-10-16 #2 | ||||||
com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1786777299 | ||||||
Subdomains
www.mentormail.com |
Same first word
mentormail.dk |
mentormail.net |
mentormail.com |
Similar names
DNS History
7 records (4 active, 3 former)
○NSdns.dca.net2026-03-26 → 2026-05-27 · 8 obs
○ 2026-03-20 21:03:00
● 2026-03-26 07:38:20
○ 2026-03-27 07:29:32
● 2026-04-25 01:28:42
● 2026-05-27 08:01:26
○ 2026-06-28 08:26:26
○ 2026-08-15 07:14:18
○MXd88717a.ess.barracudanetworks.com2016-06-26 → 2016-09-26 · 5 obs
● 2016-06-26 13:36:16
● 2016-09-26 14:42:42
○ 2018-09-17 14:42:40
○ 2026-08-15 07:14:18
○MXd88717b.ess.barracudanetworks.com2016-06-26 → 2016-09-26 · 5 obs
● 2016-06-26 13:36:16
● 2016-09-26 14:42:42
○ 2018-09-17 14:42:40
○ 2026-08-15 07:14:18
●MXscrubber.dca.net2015-05-18 → 2026-08-15 · 6 obs
● 2016-03-11 14:28:50
○ 2016-06-26 13:36:16
○ 2016-09-26 14:42:42
● 2018-09-17 14:42:40
● 2026-08-15 07:14:18
●A216.158.44.212026-03-15 → 2026-08-15 · 2 obs
● 2026-08-15 07:14:18
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | k.gtld-servers.net, e.gtld-servers.net, m.gtld-servers.net, b.gtld-servers.net... | - |
| mentormail.com | ns1.dca.net, ns2.dca.net | - |
✅ Authoritative Response
Server:207.245.84.201
NS records: ns1.dca.net, ns2.dca.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for mentormail.com (unsigned zone)
⏱️ Timing
Total: 436ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 216.158.44.21 |
| NS | 2 | ns2.dca.net, ns1.dca.net |
| MX | 1 | scrubber.dca.net (pri: 10) |
| SOA | 1 | ns1.dca.net hostmaster.dca.net |
Analysis
Hierarchy
www.mentormail.com is a subdomain of mentormail.com.
IP Addresses
mentormail.com resolves to one IP address: 216.158.44.21.
www.mentormail.com, bassman.com, microeconomicanalyst.com and two other host names share IP numbers with mentormail.com.
Name Servers
Two name servers handle the delegation for mentormail.com: ns1.dca.net and ns2.dca.net.
mentormail.com uses the same name servers as several other domains — among them 32.0.208.in-addr.arpa, 35.158.216.in-addr.arpa, 22.158.216.in-addr.arpa and two more.
The name servers of mentormail.com overlap at least partially with those of other domains — among them router66.com, dehistory.org, masseynet.com and two more.
These name servers commonly appear in combination with the name servers dns.dca.net.
Both ns1.dca.net and ns2.dca.net have a single IP address each — ns1.dca.net resolves to 207.245.84.201 while ns2.dca.net resolves to 207.245.82.2.
Mail Servers
Mail for mentormail.com is handled by a single mail server, scrubber.dca.net.
mentormail.com uses an identical mail server configuration to several other domains — among them systechno.com, dca.net, feinberg.net and two more.
scrubber.dca.net carries a single IP number, which is 216.158.48.62.