mail.schoolbox.com.br - robtex.com

mail.schoolbox.com.br

DNSSEC⚠️ Not signed
A216.172.172.184🇺🇸 Jacksonville216.172.172.0/24
PTRsrv150-ip05.prodns.com.br

schoolbox.com.br

DNSSEC⚠️ Not signed
A216.172.172.184🇺🇸 Jacksonville216.172.172.0/24
NSns1.iadvancedcomunicacao.com.br ⭐
NSns2.iadvancedcomunicacao.com.br
MXmail.schoolbox.com.br ⭐
TXTv=spf1 a mx include:websitewelcome.com ~all
SOAns1.iadvancedcomunicacao.com.brjunior@iadvanced.com.br 2026-04-14 #23

MX for

schoolbox.com.br

Same first word

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DNS History

1 record (1 active, 0 former)

A216.172.172.184
●A216.172.172.1842026-02-26 → 2026-05-12 · 2 obs
● 2026-02-26 01:32:26
● 2026-05-12 10:57:04

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
bra.dns.br, b.dns.br, c.dns.br, d.dns.br...-
schoolbox.com.brns1.iadvancedcomunicacao.com.br, ns2.iadvancedcomunicacao.com.br2 records

✅ Authoritative Response

Server:216.172.172.181

NS records: ns1.iadvancedcomunicacao.com.br, ns2.iadvancedcomunicacao.com.br

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

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

⏱️ Timing

Total: 688ms | Queries: -

📄 Records

TypeCountSample Data
A1216.172.172.184

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns1.iadvancedcomunicacao.com.br, ns2.iadvancedcomunicacao.com.br)

Analysis

Mail Server Role

mail.schoolbox.com.br is the mail server for schoolbox.com.br.

IP Addresses

mail.schoolbox.com.br resolves to one IP number: 216.172.172.184.

other host names including novositepm.carius.ce.gov.br, mcastello.com.br, slkengenharia.com.br, willtech.com.br and interativadez.com.br share IP numbers with mail.schoolbox.com.br.