`mail.challyou.com`

	DNSSEC	⚠️ Not signed
	A	2a01:4f8:a0:4181::2^{🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK}
	A	85.10.206.98^{🇩🇪 Hetzner85.10.192.0/18 HETZNER-RZ-NBG-BLK3}

`challyou.com`

	DNSSEC	⚠️ Not signed
	A	2a01:4f8:a0:4181::2^{🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK}
	A	85.10.206.98^{🇩🇪 Hetzner85.10.192.0/18 HETZNER-RZ-NBG-BLK3}
	NS	`nsa5.schlundtech.de` ⭐
	NS	`nsb5.schlundtech.de`
	NS	`nsc5.schlundtech.de`
	NS	`nsd5.schlundtech.de`
	MX	`srv01.nubfield.com` ⭐
	TXT	`v=spf1 a mx ip4:85.10.206.98 ip6:2a01:4f8:a0:4181::/64 -all`
	SOA	`nsa5.schlundtech.de`harryguenzer@arcor.de 2018-02-28 #1

Previously MX for

challyou.com

Same first word

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DNS History

5 records (2 active, 3 former)

○A2a01:4f8:141:3c3::22015-11-09 → 2016-07-12 · 5 obs

○ 2015-06-22 06:47:28
● 2015-11-09 07:31:48
● 2016-07-12 10:47:18
○ 2026-03-23 01:06:46
○ 2026-05-13 02:42:22

●A2a01:4f8:a0:4181::22026-03-23 → 2026-05-13 · 3 obs

○ 2016-07-12 10:47:18
● 2026-03-23 01:06:46
● 2026-05-13 02:42:22

○A46.4.107.722015-11-09 → 2016-07-12 · 5 obs

○ 2015-06-22 06:47:28
● 2015-11-09 07:31:48
● 2016-07-12 10:47:18
○ 2026-03-23 01:06:46
○ 2026-05-13 02:42:22

●A85.10.206.982026-03-23 → 2026-05-13 · 3 obs

○ 2016-07-12 10:47:18
● 2026-03-23 01:06:46
● 2026-05-13 02:42:22

○A85.13.150.1702015-06-22 → 2015-06-22 · 3 obs

● 2015-06-22 06:47:28
○ 2015-11-09 07:31:48
○ 2026-05-13 02:42:22

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
challyou.com	nsa5.schlundtech.de, nsb5.schlundtech.de, nsc5.schlundtech.de, nsd5.schlundtech.de	-

✅ Authoritative Response

Server:217.160.80.227

NS records: nsa5.schlundtech.de, nsb5.schlundtech.de, nsc5.schlundtech.de, nsd5.schlundtech.de

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for challyou.com (unsigned zone)

⏱️ Timing

Total: 729ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`85.10.206.98`
AAAA	1	`2a01:4f8:a0:4181::2`

Analysis

IP Addresses

mail.challyou.com points to two IPs: 2a01:4f8:a0:4181::2 and 85.10.206.98.

Other host names such as challyou.com, 85-10-206-98.clients.your-server.de, cfal.de and static.85-10-206-98.clients.your-server.de share IP numbers with mail.challyou.com.

mail.challyou.com - robtex.com