postfix.org - dns.ninja
postfix.org
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| A | 2a01:4f9:c010:8fb::bee🇫🇮 Hetzner2a01:4f9::/32 HETZNER-IPv6-BLK | ||||||
| PTR | karnak.horus-it.de | ||||||
| A | 95.216.145.1🇫🇮 Hetzner95.216.0.0/16 HETZNER-DC | ||||||
| NS | get.desec.io ⭐ | ||||||
| A | 2a01:4f8:10a:1044:deec:642:ac10:80🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK | ||||||
| A | 88.99.64.5🇩🇪 Hetzner88.99.0.0/16 HETZNER-DC | ||||||
| PTR | digga.desec.io | ||||||
| NS | ns1.desec.io | ||||||
| A | 2607:f740:e633:deec::2🇺🇸 NETACTUATE2607:f740:e633::/48 NetActuate, Inc | ||||||
| PTR | ns1.desec.io | ||||||
| A | 45.54.76.1🇺🇸 NETACTUATE45.54.76.0/24 | ||||||
| PTR | ns1.desec.io | ||||||
| NS | ns2.desec.org | ||||||
| A | 2607:f740:e00a:deec::2🇺🇸 AS362172607:f740:e00a::/48 NetActuate, Inc | ||||||
| PTR | ns2.desec.org | ||||||
| A | 157.53.224.1🇺🇸 AS36217157.53.224.0/24 Customer Route | ||||||
| PTR | ns2.desec.org | ||||||
| MX | list.sys4.de ⭐ | ||||||
| A | 2a03:4000:20:189::195🇩🇪 netcup-AS2a03:4000::/32 NETCUP-GMBH | ||||||
| PTR | list.sys4.de | ||||||
| A | 45.90.5.195🇩🇪 netcup-AS45.90.4.0/22 | ||||||
| PTR | list.sys4.de | ||||||
| TXT | v=spf1 include:_spf.list.sys4.de ~all | ||||||
| SOA | get.desec.ioget@desec.io serial=2026064052 | ||||||
org
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a0.org.afilias-nst.info ⭐ ⚠️ Not in parent delegation | ||||||
| NS | a2.org.afilias-nst.info ⚠️ Not in parent delegation | ||||||
| NS | b0.org.afilias-nst.org | ||||||
| NS | b2.org.afilias-nst.org | ||||||
| NS | c0.org.afilias-nst.info ⚠️ Not in parent delegation | ||||||
| NS | d0.org.afilias-nst.org | ||||||
| SOA | a0.org.afilias-nst.infohostmaster@donuts.email serial=1784528840 | ||||||
rank #764 in the tld
WOT: SAFE (93/100)
📈 Tranco rank: #27,678
Previously MX for
Subdomains
Same first word
Similar names
DNS History
18 records (6 active, 12 former)
●NSget.desec.io2026-02-17 → 2026-07-20 · 3 obs
● 2026-02-17 06:40:46
● 2026-07-20 07:01:24
○NSns1.cloud9.net2015-07-01 → 2019-06-17 · 4 obs
● 2019-06-17 11:35:18
○ 2026-02-17 06:40:46
○ 2026-07-20 07:01:24
●NSns1.desec.io2026-02-17 → 2026-07-20 · 3 obs
● 2026-02-17 06:40:46
● 2026-07-20 07:01:24
○NSns2.cloud9.net2015-07-01 → 2019-06-17 · 4 obs
● 2019-06-17 11:35:18
○ 2026-02-17 06:40:46
○ 2026-07-20 07:01:24
●NSns2.desec.org2026-02-17 → 2026-07-20 · 3 obs
● 2026-02-17 06:40:46
● 2026-07-20 07:01:24
○NSns4.cloud9.net2015-07-01 → 2019-06-17 · 4 obs
● 2019-06-17 11:35:18
○ 2026-02-17 06:40:46
○ 2026-07-20 07:01:24
○NSns5.cloud9.net2015-07-01 → 2019-06-17 · 4 obs
● 2019-06-17 11:35:18
○ 2026-02-17 06:40:46
○ 2026-07-20 07:01:24
○NSspike.porcupine.org2015-07-01 → 2019-06-17 · 4 obs
● 2019-06-17 11:35:18
○ 2026-02-17 06:40:46
○ 2026-07-20 07:01:24
○NSstatic-70-104-130-26.nycmny.fios.verizon.net2015-07-01 → 2018-08-26 · 4 obs
● 2018-08-26 18:38:10
○ 2018-09-19 20:49:24
○ 2026-07-20 07:01:24
●MXlist.sys4.de2026-02-17 → 2026-07-20 · 3 obs
● 2026-02-17 06:40:46
● 2026-07-20 07:01:24
○MXmail.cloud9.net2015-07-01 → 2019-06-17 · 4 obs
● 2019-06-17 11:35:18
○ 2026-02-17 06:40:46
○ 2026-07-20 07:01:24
●A2a01:4f9:c010:8fb::bee2026-02-17 → 2026-07-20 · 2 obs
● 2026-07-20 07:01:24
●A95.216.145.12026-02-17 → 2026-07-20 · 2 obs
● 2026-07-20 07:01:24
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| org | b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org | - |
| postfix.org | ns2.desec.org, ns1.desec.io | 2 records |
✅ Authoritative Response
Server:157.53.224.1
NS records: ns2.desec.org, ns1.desec.io
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 819ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 95.216.145.1 |
| AAAA | 1 | 2a01:4f9:c010:8fb::bee |
| NS | 2 | ns1.desec.io, ns2.desec.org |
| MX | 1 | list.sys4.de (pri: 10) |
| TXT | 1 | v=spf1 include:_spf.list.sys4.de ~all |
| SOA | 1 | get.desec.io get.desec.io |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns2.desec.org, ns2.desec.org)
Analysis
Hierarchy
postfix.org serves as the parent of de.postfix.org and www.postfix.org.
IP Addresses
postfix.org resolves to the IP addresses 95.216.145.1 and 2a01:4f9:c010:8fb::bee
karnak.horus-it.de, postfix-mirror.horus-it.com and ns1.horus-it.de are examples of other host names that share IP numbers with postfix.org.
Name Servers
Three name servers are authoritative for postfix.org: get.desec.io, ns1.desec.io and ns2.desec.org.
postfix.org has at least partial name server overlap with other domains, such as ser-tec.net, globalmail.ch, mueller.network and two others.
get.desec.io resolves to 88.99.64.5 and 2a01:4f8:10a:1044:deec:642:ac10:80. ns1.desec.io resolves to 45.54.76.1 and 2607:f740:e633:deec::2. ns2.desec.org resolves to 157.53.224.1 and 2607:f740:e00a:deec::2. All three hostnames point to two IP numbers each.
Mail Servers
postfix.org uses one mail server — list.sys4.de.
The mail server setup of postfix.org is identical to that of domains like de.postfix.org, list.sys4.de and amavis.org.
list.sys4.de has two IP addresses: 45.90.5.195 and 2a03:4000:20:189::195.