sysmail.dk - dns.ninja
sysmail.dk
| DNSSEC | ⚠️ Not signed | ||||||
| A | 93.191.155.37🇩🇰 team-blue-denmark93.191.152.0/21 ZITCOM A/S | ||||||
| PTR | splash.zitcom.dk | ||||||
| NS | ns1.123hotel.dk ⭐ | ||||||
| A | 2a02:2339:4006:108::123🇩🇰 team-blue-denmark2a02:2339:4000::/34 | ||||||
| PTR | ns1.curanet.dk | ||||||
| A | 185.25.141.12🇩🇰 team-blue-denmark185.25.141.0/24 Zitcom A/S | ||||||
| PTR | ns1.curanet.dk | ||||||
| NS | ns2.123hotel.dk | ||||||
| A | 2a02:2339:1:10f::123:123🇩🇰 team-blue-denmark2a02:2339::/36 | ||||||
| PTR | ns2.curanet.dk | ||||||
| A | 91.197.248.75🇩🇰 team-blue-denmark91.197.248.0/22 | ||||||
| PTR | ns2.curanet.dk | ||||||
| MX | mx1.onlinemail.io ⭐ | ||||||
| A | 185.21.42.12🇩🇰 team-blue-denmark185.21.40.0/22 ZITCOM A/S | ||||||
| PTR | mx1.onlinemail.io | ||||||
| MX | mx2.onlinemail.io(20) | ||||||
| A | 46.36.208.16🇩🇰 team-blue-denmark46.36.208.0/21 | ||||||
| PTR | mx2.onlinemail.io | ||||||
| TXT | v=spf1 include:spf.onlinemail.io ?all | ||||||
| SOA | ns1.123hotel.dkhostmaster@curanet.dk 2021-11-17 #1 | ||||||
dk
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | b.nic.dk ⭐ | ||||||
| NS | c.nic.dk | ||||||
| NS | h.nic.dk | ||||||
| NS | l.nic.dk | ||||||
| NS | s.nic.dk | ||||||
| NS | t.nic.dk | ||||||
| TXT | DK zone updateEpoch 1785176641localtime Mon Jul 27 20:24:01 2026gmtime Mon Ju... | ||||||
| SOA | b.nic.dktech@punktum.dk serial=1785176641 | ||||||
Subdomains
mail.sysmail.dk |
Same first word
sysmail.info |
sysmail.org |
sysmail.ca |
sysmail.nl |
sysmail.com |
sysmail.pro |
sysmail.de |
sysmail.dk |
sysmail.net |
sysmail.fr |
sysmail.in |
sysmail.schwarz |
sysmail.eu |
sysmail.ch |
sysmail.me |
sysmail.ru |
Similar names
DNS History
7 records (5 active, 2 former)
●NSns1.123hotel.dk2015-08-03 → 2026-07-27 · 2 obs
● 2026-07-27 19:22:56
●NSns2.123hotel.dk2015-08-03 → 2026-07-27 · 2 obs
● 2026-07-27 19:22:56
○MXbackup-mx.zitcom.dk2015-08-03 → 2017-09-02 · 4 obs
● 2017-09-02 15:51:06
○ 2026-03-13 04:36:10
○ 2026-07-27 19:22:56
○MXmail.sysmail.dk2015-08-03 → 2017-09-02 · 4 obs
● 2017-09-02 15:51:06
○ 2026-03-13 04:36:10
○ 2026-07-27 19:22:56
●MXmx1.onlinemail.io2026-03-13 → 2026-07-27 · 3 obs
● 2026-03-13 04:36:10
● 2026-07-27 19:22:56
●MXmx2.onlinemail.io2026-03-13 → 2026-07-27 · 3 obs
● 2026-03-13 04:36:10
● 2026-07-27 19:22:56
●A93.191.155.372015-08-03 → 2026-07-27 · 2 obs
● 2026-07-27 19:22:56
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| dk | c.nic.dk, l.nic.dk, b.nic.dk, s.nic.dk... | - |
| sysmail.dk | ns1.123hotel.dk, ns2.123hotel.dk | 4 records |
✅ Authoritative Response
Server:185.25.141.12
NS records: ns1.123hotel.dk, ns2.123hotel.dk
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 1936ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 93.191.155.37 |
| NS | 2 | ns2.123hotel.dk, ns1.123hotel.dk |
| MX | 2 | mx1.onlinemail.io (pri: 10), mx2.onlinemail.io (pri: 20) |
| TXT | 1 | v=spf1 include:spf.onlinemail.io ?all |
| SOA | 1 | ns1.123hotel.dk hostmaster.curanet.dk |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns1.123hotel.dk, ns1.123hotel.dk, ns2.123hotel.dk...)
Analysis
Hierarchy
The domain mail.sysmail.dk falls under the parent sysmail.dk.
IP Addresses
sysmail.dk directs to one IP number, which is 93.191.155.37.
Among the host names that share IP numbers with sysmail.dk are ns1.curanet.dk.vestergaard.co, ns2.rotator-ns.dk, vestergaard.co and two others.
Name Servers
sysmail.dk is delegated to two name servers: ns1.123hotel.dk and ns2.123hotel.dk.
sysmail.dk has the same name server delegation as a number of other domains, such as nordiccomputer.dk, webvorleser.de, fsm.dk and two more.
At least some of sysmail.dk's name servers are shared with other domains, for example stockrateinvest.dk, prodisk.dk, zethner.net and two more.
These name servers tend to be deployed in combination with the name servers ns1.curanet.dk and ns2.curanet.dk.
ns1.123hotel.dk and ns2.123hotel.dk each resolve to two IP addresses: ns1.123hotel.dk points to 185.25.141.12 and 2a02:2339:4006:108::123, while ns2.123hotel.dk points to 91.197.248.75 and 2a02:2339:1:10f::123:123.
Mail Servers
The MX records for sysmail.dk point to two mail servers: mx1.onlinemail.io and mx2.onlinemail.io.
sysmail.dk has the same mail server arrangement as a number of other domains, for example carfixauto.dk, fodterapi-agersted.dk, aauforlag.dk and two more.
At least a portion of sysmail.dk's mail servers are shared with other domains, among them gl-amstrup.dk and astrow.dk.
Each of mx1.onlinemail.io and mx2.onlinemail.io has one IP address: mx1.onlinemail.io uses 185.21.42.12 and mx2.onlinemail.io uses 46.36.208.16.