`mx2.kolb-eld.com`

DNSSEC	⚠️ Not signed
A	87.128.16.21^{🇩🇪 DTAG87.128.0.0/10 Deutsche Telekom AG, Internet service provider}
		PTR	`mx2.kolb-eld.com`

`kolb-eld.com`

	DNSSEC	⚠️ Not signed
	A	217.160.0.81^{🇩🇪 IONOS-AS217.160.0.0/16 IONOS-PA-3}
	NS	`ns1121.ui-dns.org` ⭐
	NS	`ns1121.ui-dns.biz`
	NS	`ns1121.ui-dns.com`
	NS	`ns1121.ui-dns.de`
	MX	`kolbeld-com01b.mail.protection.outlook.com` ⭐
	MX	`mx2.kolb-eld.com`⁽¹⁰⁰⁾
	MX	`mx1.kolb-eld.com`⁽²⁰⁰⁾
	TXT	`brevo-code:438a49293df4770392e04a29ecb12ed9`
	TXT	`apple-domain-verification=uWYmUFAW3r2n4WbL`
	TXT	`v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCNLLULbtxKneiHEaDEW9L...`
	TXT	`v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDKow+n0KovSz8SsqFpqgE...`
	TXT	`MS=046A0D9552A6F5281DEFE7B53351E385312114BA`
	TXT	`+bI3gT6YC69FvhGQs/JB5lURqNiWqZ3v8F7M+/vpP7tj2HWPPx4va4KS8Cf61TCArqgsmffJhR1Wo...`
	TXT	`v=spf1 mx a ip4:87.128.16.21/32 ip4:80.152.210.132/32 ip4:80.151.80.13/32 ip4...`
	TXT	`bw=UBdruNLD2zaodM2vb1Gr3iiK2eAbzTORui0t0iG1Jahe`
	SOA	`ns1121.ui-dns.org`hostmaster@1und1.de 2016-11-05 #36

PTR for

21.16.128.87.in-addr.arpa

MX for

kolb-eld.com

Same first word

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DNS History

1 record (1 active, 0 former)

●A87.128.16.212026-04-13 → 2026-04-13 · 2 obs

● 2026-04-13 00:30:16
● 2026-04-13 07:57:40

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	h.gtld-servers.net, k.gtld-servers.net, d.gtld-servers.net, i.gtld-servers.net...	-
kolb-eld.com	ns1121.ui-dns.de, ns1121.ui-dns.biz, ns1121.ui-dns.org, ns1121.ui-dns.com	2 records

✅ Authoritative Response

Server:217.160.82.121

NS records: ns1121.ui-dns.de, ns1121.ui-dns.biz, ns1121.ui-dns.org, ns1121.ui-dns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for kolb-eld.com (unsigned zone)

⏱️ Timing

Total: 796ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`87.128.16.21`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns1121.ui-dns.com, ns1121.ui-dns.com)

Analysis

Mail Server Role

mx2.kolb-eld.com is the mail server for kolb-eld.com.

Mail servers mx1.kolb-eld.com and kolbeld-com01b.mail.protection.outlook.com are commonly used with mx2.kolb-eld.com.

IP Addresses

mx2.kolb-eld.com points to a single IP number: 87.128.16.21.

Other host names, for instance mx2.kolb-eld.de, share IP numbers with mx2.kolb-eld.com.

mx2.kolb-eld.com - robtex.com

mx2.kolb-eld.com

kolb-eld.com