WWW.RTSAK.COM - postfix.org

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postfix.org checked at 2025-09-08T22:00:31.387Z 129ms 113/113/113 100% R:14

`postfix.org`

NS	`nsx03.sys4.ch`
		A	2a05:f480:1c00:8b7:5400:5ff:fe2f:f4ef ^{🇫🇷 The Constant Company}
		A	199.247.9.18^{🇫🇷 The Constant Company}
			PTR	`199.247.9.18.vultrusercontent.com`
NS	`nsx04.sys4.ch`
		A	2a03:6000:6f73:623::162 ^{🇳🇱 High5!}
			PTR	`powered-by.openbsd.amsterdam`
		A	46.23.92.162^{🇳🇱 High5!}
			PTR	`powered-by.openbsd.amsterdam`
MX	`list.sys4.de`
		A	2a03:4000:20:189::195 ^{🇩🇪 netcup GmbH}
			PTR	`list.sys4.de`
		A	45.90.5.195^{🇩🇪 netcup GmbH}
			PTR	`list.sys4.de`
NS	`nsx01.sys4.de`
		A	2a03:4000:29:75f:9463:84ff:fe80:8659 ^{🇩🇪 netcup GmbH}
			PTR	`nsx01.sys4.de`
		A	94.16.116.124^{🇦🇹 netcup GmbH}
			PTR	`nsx01.sys4.de`
NS	`nsx05.sys4.eu`
		A	2001:19f0:ac01:784:5400:4ff:fe43:dc84 ^{🇺🇸 The Constant Company}
		A	149.28.195.250^{🇺🇸 The Constant Company}
			PTR	`149.28.195.250.vultrusercontent.com`
NS	`nsx06.sys4.eu`
		A	2401:c080:1c02:4c9:5400:4ff:fe43:df9a ^{🇰🇷 The Constant Company}
		A	149.28.195.250^{🇺🇸 The Constant Company}
			PTR	`149.28.195.250.vultrusercontent.com`
A	2a01:4f9:6a:528d::a ^{🇩🇪 Hetzner}
		PTR	`ra.horus-it.com`
A	65.108.3.114^{🇫🇮 Hetzner}
		PTR	`ra.horus-it.com`

rank #8066 globally
rank #930 in the tld

Up
`de.postfix.org`
`www.postfix.org`

de.postfix.org and www.postfix.org are children of postfix.org.

postfix.org points to two IP numbers: 2a01:4f9:6a:528d::a and 65.108.3.114.

IP numbers are shared between postfix.org and other host names such as sentries.org, ra.horus-it.com, horus-it.de, horus-it.com, and ns1.horus-it.com.

Five name servers, nsx03.sys4.ch, nsx04.sys4.ch, nsx01.sys4.de, nsx05.sys4.eu, and nsx06.sys4.eu, are delegated to postfix.org.

The domain postfix.org shares at least a portion of its name servers with other domains such as postfix.com, mailop.org, postfix.net, and postfix.co.uk.

The name servers nsx02.sys4.farm are frequently utilized in conjunction.

nsx03.sys4.ch, nsx04.sys4.ch, nsx01.sys4.de, nsx05.sys4.eu, and nsx06.sys4.eu each point to two IP numbers: 2a05:f480:1c00:8b7:5400:5ff:fe2f:f4ef and 199.247.9.18, 2a03:6000:6f73:623::162 and 46.23.92.162, 2a03:4000:29:75f:9463:84ff:fe80:8659 and 94.16.116.124, 2001:19f0:ac01:784:5400:4ff:fe43:dc84 and 149.28.195.250, 2401:c080:1c02:4c9:5400:4ff:fe43:df9a and 149.28.195.250 respectively.

The mail server, list.sys4.de, manages postfix.org.

Just like other domains such as list.sys4.de, postfix.org also has the same mail server setup.

list.sys4.de points to two IP numbers: 2a03:4000:20:189::195 and 45.90.5.195.

dbq