`postoffice.uu.org`

DNSSEC	⚠️ Not signed
A	2001:678:2c0:1:0:c1ff:fe1a:782b^{🇩🇪 GGNET2000::/12}
		PTR	`postoffice.uu.org`
A	193.26.120.43^{🇩🇪 WUSEL-AS193.26.120.0/24 Kai Siering}

`uu.org`

	DNSSEC	⚠️ Not signed
	A	2a06:e881:2604:42:0:c1ff:fe1a:78db^{🇨🇭 WUSEL-AS2a06:e881:2604::/48 DC HAM}
	A	193.26.120.219^{🇩🇪 WUSEL-AS193.26.120.0/24 Kai Siering}
	NS	`librarian.uu.org` ⭐
	NS	`dns-fks.uu.org`
	NS	`dns-gut.4830.org`
	NS	`weyoun3.cord.de`
	MX	`mx.uu.org` ⭐
	MX	`mx-tng.uu.org`⁽⁶⁾
	MX	`mx-legacy.uu.org`⁽¹⁰⁾
	TXT	`v=spf1 mx a:mail.uu.org a:death.uu.org a:mx.uu.org a:famine.uu.org a:tmpmail....`
	SOA	`librarian.uu.org`librarian@uu.org 2026-01-19 #2

WOT: SAFE (62/100)
📈 Tranco rank: #321,873

PTR for

43.120.26.193.in-addr.arpa

MX for

nat.agency

Same first word

Similar names

DNS History

2 records (2 active, 0 former)

●A193.26.120.432026-02-23 → 2026-05-15 · 2 obs

● 2026-02-23 02:15:04
● 2026-05-15 18:05:36

●A2001:678:2c0:1:0:c1ff:fe1a:782b2026-02-23 → 2026-05-15 · 2 obs

● 2026-02-23 02:15:04
● 2026-05-15 18:05:36

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
org	b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org	-
uu.org	dns-gut.4830.org, weyoun3.cord.de, librarian.uu.org, dns-fks.uu.org	7 records

✅ Authoritative Response

Server:65.21.89.138

NS records: dns-gut.4830.org, weyoun3.cord.de, librarian.uu.org, dns-fks.uu.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for uu.org (unsigned zone)

⏱️ Timing

Total: 372ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`193.26.120.43`
AAAA	1	`2001:678:2c0:1:0:c1ff:fe1a:782b`

📌 Glue Records Collected

Total: 7

In-bailiwick: 5 (dns-fks.uu.org, dns-fks.uu.org, librarian.uu.org...)

Out-of-bailiwick: 2 (dns-gut.4830.org, dns-gut.4830.org)

Analysis

Mail Server Role

postoffice.uu.org serves as the mail server for nat.agency.

mx.uu.org serves as a mail server, commonly paired with postoffice.uu.org.

IP Addresses

postoffice.uu.org resolves to two IP numbers: 2001:678:2c0:1:0:c1ff:fe1a:782b and 193.26.120.43.

Other host names, such as mail.0xdecafbad.net, share IP numbers with postoffice.uu.org.

postoffice.uu.org - robtex.com