postfix.org - robtex.com
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=2026034941 | ||||||
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=1778335004 | ||||||
rank #776 in the tld
WOT: SAFE (93/100)
📈 Tranco rank: #28,298
Previously MX for
Subdomains
Same first word
Similar names
DNS History
18 records (6 active, 12 former)
●NSget.desec.io2026-02-17 → 2026-05-09 · 3 obs
● 2026-02-17 06:40:46
● 2026-05-09 14:21:36
○NSns1.cloud9.net2015-07-01 → 2019-06-17 · 4 obs
● 2019-06-17 11:35:18
○ 2026-02-17 06:40:46
○ 2026-05-09 14:21:36
●NSns1.desec.io2026-02-17 → 2026-05-09 · 3 obs
● 2026-02-17 06:40:46
● 2026-05-09 14:21:36
○NSns2.cloud9.net2015-07-01 → 2019-06-17 · 4 obs
● 2019-06-17 11:35:18
○ 2026-02-17 06:40:46
○ 2026-05-09 14:21:36
●NSns2.desec.org2026-02-17 → 2026-05-09 · 3 obs
● 2026-02-17 06:40:46
● 2026-05-09 14:21:36
○NSns4.cloud9.net2015-07-01 → 2019-06-17 · 4 obs
● 2019-06-17 11:35:18
○ 2026-02-17 06:40:46
○ 2026-05-09 14:21:36
○NSns5.cloud9.net2015-07-01 → 2019-06-17 · 4 obs
● 2019-06-17 11:35:18
○ 2026-02-17 06:40:46
○ 2026-05-09 14:21:36
○NSspike.porcupine.org2015-07-01 → 2019-06-17 · 4 obs
● 2019-06-17 11:35:18
○ 2026-02-17 06:40:46
○ 2026-05-09 14:21:36
○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
○ 2026-05-09 14:21:36
●MXlist.sys4.de2026-02-17 → 2026-05-09 · 3 obs
● 2026-02-17 06:40:46
● 2026-05-09 14:21:36
○MXmail.cloud9.net2015-07-01 → 2019-06-17 · 4 obs
● 2019-06-17 11:35:18
○ 2026-02-17 06:40:46
○ 2026-05-09 14:21:36
●A2a01:4f9:c010:8fb::bee2026-02-17 → 2026-05-09 · 2 obs
● 2026-05-09 14:21:36
●A95.216.145.12026-02-17 → 2026-05-09 · 2 obs
● 2026-05-09 14:21:36
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| org | b2.org.afilias-nst.org, b0.org.afilias-nst.org, d0.org.afilias-nst.org | - |
| postfix.org | ns2.desec.org, ns1.desec.io | 2 records |
✅ Authoritative Response
Server:45.54.76.1
NS records: ns2.desec.org, ns1.desec.io
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 394ms | 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 is parent of de.postfix.org and www.postfix.org.
IP Addresses
postfix.org points to two IP numbers: 2a01:4f9:c010:8fb::bee and 95.216.145.1.
Other host names, for instance karnak.horus-it.de, postfix-mirror.horus-it.com and ns1.horus-it.de share IP numbers with postfix.org.
Name Servers
postfix.org is delegated to three name servers: get.desec.io, ns1.desec.io and ns2.desec.org.
postfix.org at least partially shares its name servers with other domains, for instance ser-tec.net, globalmail.ch, mueller.network, pretecno.com and ftorrent.com.
Host names with two IP numbers:
get.desec.io points to: 2a01:4f8:10a:1044:deec:642:ac10:80 and 88.99.64.5.
ns1.desec.io points to: 2607:f740:e633:deec::2 and 45.54.76.1.
ns2.desec.org points to: 2607:f740:e00a:deec::2 and 157.53.224.1.
Mail Servers
postfix.org is served by a single mail server, list.sys4.de.
postfix.org shares the same mail server setup as de.postfix.org, list.sys4.de and amavis.org.
Hostname list.sys4.de resolves to two IPs: 2a03:4000:20:189::195 and 45.90.5.195.