mail.sys-data.com - dns.ninja

`mail.sys-data.com`

DNSSEC	⚠️ Not signed
A	2a02:970:1::ea5^{🇨🇿 SYS-DATACOM2a02:970::/32 IPv6 I.}
		PTR	`smtp.sys-data.com`
		PTR	`smtp.brouzdej.net`
A	2a02:970:1::ea11^{🇨🇿 SYS-DATACOM2a02:970::/32 IPv6 I.}
A	79.98.72.5^{🇨🇿 SYS-DATACOM79.98.72.0/24 TTC 1.}
A	79.98.72.11^{🇨🇿 SYS-DATACOM79.98.72.0/24 TTC 1.}

`sys-data.com`

	DNSSEC	⚠️ Not signed
	A	2a02:970:1::29^{🇨🇿 SYS-DATACOM2a02:970::/32 IPv6 I.}
	A	79.98.72.29^{🇨🇿 SYS-DATACOM79.98.72.0/24 TTC 1.}
	NS	`a.ns.brouzdej.net` ⭐
	NS	`b.ns.brouzdej.net`
	MX	`smtp.sys-data.com` ⭐
	MX	`smtp.brouzdej.net`⁽¹⁰⁰⁾
	MX	`proxmoxmailgateway.sys-data.com`⁽²⁰⁰⁾
	TXT	`google-site-verification=Dhc6AEjqcCbP1THBVDdVMZwU6EsoTJUR9JZRSk9Fuuo`
	TXT	`google-site-verification=9YGOOvCACKDaTYa3Gd2crz2k5WFTghCkP3N2PAWyBuw`
	TXT	`v=spf1 include:_spf.sys-data.com include:_spf.google.com ~all`
	SOA	`a.ns.brouzdej.net`podpora@sys-data.com 2009-06-22 #29

📈 Tranco rank: #532,352

MX for

peckanet.cz

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DNS History

4 records (4 active, 0 former)

●A2a02:970:1::ea112020-02-17 → 2026-07-25 · 2 obs

● 2020-02-17 05:16:18
● 2026-07-25 21:27:58

●A2a02:970:1::ea52026-02-16 → 2026-07-25 · 3 obs

○ 2020-02-17 05:16:18
● 2026-02-16 13:49:44
● 2026-07-25 21:27:58

●A79.98.72.112026-02-16 → 2026-07-25 · 3 obs

○ 2020-02-17 05:16:18
● 2026-02-16 13:49:44
● 2026-07-25 21:27:58

●A79.98.72.52020-02-17 → 2026-07-25 · 2 obs

● 2020-02-17 05:16:18
● 2026-07-25 21:27:58

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	g.gtld-servers.net, e.gtld-servers.net, k.gtld-servers.net, m.gtld-servers.net...	-
sys-data.com	a.ns.brouzdej.net, b.ns.brouzdej.net	-

✅ Authoritative Response

Server:79.98.72.1

NS records: a.ns.brouzdej.net, b.ns.brouzdej.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sys-data.com (unsigned zone)

⏱️ Timing

Total: 2192ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`79.98.72.5, 79.98.72.11`
AAAA	2	`2a02:970:1::ea11, 2a02:970:1::ea5`

Analysis

Mail Server Role

The mail server mail.sys-data.com processes email for peckanet.cz.

IP Addresses

mail.sys-data.com has four IP addresses: 79.98.72.5, 79.98.72.11, 2a02:970:1::ea5 and 2a02:970:1::ea11.

Two other host names, along with smtpout.brouzdej.net, smtp.bajecny.net and mail.epd-pa.cz, also share IP numbers with mail.sys-data.com.