mail.cemfs.com.br - robtex.com

mail.cemfs.com.br

DNSSEC⚠️ Not signed
A216.172.172.178🇺🇸 Jacksonville216.172.172.0/24
PTRsrv148-ip04.prodns.com.br

cemfs.com.br

DNSSEC⚠️ Not signed
A2606:4700:3031::ac43:a895🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3033::6815:1ae9🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.26.233Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.168.149🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSclint.ns.cloudflare.com ⭐
NSgrace.ns.cloudflare.com
MXmail.cemfs.com.br ⭐
TXTv=spf1 ip4:216.172.172.175 a mx include:websitewelcome.com ~all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.26.233, 172.67.168.149
IPv6 hints2606:4700:3031::ac43:a895, 2606:4700:3033::6815:1ae9
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=121, name=cloudflare-ech.com
SOAclint.ns.cloudflare.comdns@cloudflare.com serial=2398006889

MX for

cemfs.com.br

Same first word

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DNS History

2 records (1 active, 1 former)

2017201820192020202120222023202420252026A216.172.172.178173.192.48.172
○A173.192.48.1722016-05-23 → 2016-05-23 · 3 obs
● 2016-05-23 02:56:06
○ 2026-02-17 00:29:52
○ 2026-04-23 17:28:56
●A216.172.172.1782026-02-17 → 2026-04-23 · 3 obs
○ 2016-05-23 02:56:06
● 2026-02-17 00:29:52
● 2026-04-23 17:28:56

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
brc.dns.br, e.dns.br, a.dns.br, f.dns.br...-
cemfs.com.brgrace.ns.cloudflare.com, clint.ns.cloudflare.com-

✅ Authoritative Response

Server:173.245.58.159

NS records: grace.ns.cloudflare.com, clint.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

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

⏱️ Timing

Total: 809ms | Queries: -

📄 Records

TypeCountSample Data
A1216.172.172.178

Analysis

Mail Server Role

The mail server for cemfs.com.br is mail.cemfs.com.br.

IP Addresses

mail.cemfs.com.br points to a single IP number: 216.172.172.178.

Other host names, for instance mail.pontenova.com.br, pontenova.com.br, danilogas.com.br, mail.santoantoniodograma.mg.gov.br and spacehub.com.br share IP numbers with mail.cemfs.com.br.