`mail.arcominf.com.br`

CNAME	`ns.arcominf.com.br`
DNSSEC	⚠️ Not signed
A	177.206.87.141^{🇧🇷 Vivo_B2B_and_Fixed_Broadband_Services177.206.84.0/22}
		PTR	`177.206.87.141.static.gvt.net.br`

`arcominf.com.br`

	DNSSEC	⚠️ Not signed
	A	177.206.87.141^{🇧🇷 Vivo_B2B_and_Fixed_Broadband_Services177.206.84.0/22}
	NS	`ns.arcominf.local.arcominf.com.br` ⭐
	NS	`ns.arcominf.com.br` ⚠️ Not in parent delegation
	NS	`nsarcom1.dnsalias.net` ⚠️ Not in zone NS records
	NS	`nsarcom2.dnsalias.net` ⚠️ Not in zone NS records
	MX	`mail.arcominf.com.br` ⭐
	TXT	`v=spf1 a mx ptr a:mail.arcominf.com.br ip4:177.206.87.141/32 ip4:186.206.205....`
	SOA	`ns.arcominf.local.arcominf.com.br`arcom@arcominf.com.br 2026-02-13 #0

PTR for

179.173.16.201.in-addr.arpa

MX for

arcominf.com.br

Same first word

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DNS History

6 records (1 active, 5 former)

○NSns1.hostseguro.com2017-04-06 → 2026-02-14 · 4 obs

● 2017-04-06 10:02:02
● 2026-02-14 17:41:08
○ 2026-02-20 09:29:06
○ 2026-04-14 22:01:36

○NSns2.hostseguro.com2017-04-06 → 2026-02-14 · 4 obs

● 2017-04-06 10:02:02
● 2026-02-14 17:41:08
○ 2026-02-20 09:29:06
○ 2026-04-14 22:01:36

○NSns3.hostseguro.com2017-04-06 → 2026-02-14 · 4 obs

● 2017-04-06 10:02:02
● 2026-02-14 17:41:08
○ 2026-02-20 09:29:06
○ 2026-04-14 22:01:36

○A201.16.173.1792017-04-06 → 2026-02-14 · 4 obs

● 2017-04-06 10:02:02
● 2026-02-14 17:41:08
○ 2026-02-20 09:29:06
○ 2026-04-14 22:01:36

○CNAMEarcominf.com.br2017-04-06 → 2017-04-06 · 3 obs

● 2017-04-06 10:02:02
○ 2026-02-14 17:41:08
○ 2026-04-14 22:01:36

●CNAMEns.arcominf.com.br2026-02-14 → 2026-04-14 · 3 obs

○ 2017-04-06 10:02:02
● 2026-02-14 17:41:08
● 2026-04-14 22:01:36

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
br	a.dns.br, b.dns.br, c.dns.br, d.dns.br...	-
arcominf.com.br	nsarcom1.dnsalias.net, nsarcom2.dnsalias.net	-

✅ Authoritative Response

Server:177.206.87.141

NS records: nsarcom1.dnsalias.net, nsarcom2.dnsalias.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for arcominf.com.br (unsigned zone)

⏱️ Timing

Total: 904ms | Queries: -

📄 Records

Type	Count	Sample Data
CNAME	1	`ns.arcominf.com.br`

Analysis

Mail Server Role

mail.arcominf.com.br serves as the mail server for arcominf.com.br.

IP Addresses

mail.arcominf.com.br points to a single IP address: 177.206.87.141.

Other host names such as nsarcom1.dnsalias.net, nsarcom2.dnsalias.net, arcominf.com.br, ns.arcominf.com.br and 177.206.87.141.static.gvt.net.br share IP numbers with mail.arcominf.com.br.

mail.arcominf.com.br - robtex.com