`mail.authentications-microsoft.com`

DNSSEC	⚠️ Not signed
A	45.13.239.171^{🇩🇪 FlorianKolb45.13.239.0/24}
		PTR	`171.239.13.45.in-addr.arpa`

`authentications-microsoft.com`

	DNSSEC	⚠️ Not signed
	A	45.13.239.171^{🇩🇪 FlorianKolb45.13.239.0/24}
	NS	`ns1.dyna-ns.net` ⭐
	NS	`ns2.dyna-ns.net`
	MX	`mx1.hostinger.com` ⭐
	MX	`mail.authentications-microsoft.com`⁽¹⁰⁾
	MX	`mx2.hostinger.com`⁽¹⁰⁾
	TXT	`v=spf1 include:_spf.mail.hostinger.com ~all`
	TXT	`88c6ab1ad577bd6b134a4481fa203587`
	SOA	`ns1.dyna-ns.net`hostmaster@authentications-microsoft.com 2026-03-25 #1

⚠️ On DNS blocklist: light, multi, pro, pro.plus, tif, ultimate

MX for

authentications-microsoft.com

Same first word

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DNS History

1 record (1 active, 0 former)

●A45.13.239.1712026-03-28 → 2026-03-29 · 2 obs

● 2026-03-28 09:14:42
● 2026-03-29 17:43:52

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	e.gtld-servers.net, h.gtld-servers.net, m.gtld-servers.net, l.gtld-servers.net...	-
authentications-microsoft.com	ns2.dyna-ns.net, ns1.dyna-ns.net	-

✅ Authoritative Response

Server:162.159.26.92

NS records: ns2.dyna-ns.net, ns1.dyna-ns.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for authentications-microsoft.com (unsigned zone)

⏱️ Timing

Total: 425ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`45.13.239.171`

Analysis

Mail Server Role

mail.authentications-microsoft.com functions as a mail server for authentications-microsoft.com.

mx1.hostinger.com and mx2.hostinger.com are commonly used as mail servers alongside mail.authentications-microsoft.com.

IP Addresses

mail.authentications-microsoft.com resolves to one IP number: 45.13.239.171.

Other host names, for instance authentications-microsoft.com, share IP numbers with mail.authentications-microsoft.com.

mail.authentications-microsoft.com - robtex.com