mail.groupc.com - robtex.com

mail.groupc.com

DNSSEC⚠️ Not signed
MXmail-groupc-com.mail.protection.outlook.com ⭐
A2a01:111:f403:c91d::b🇺🇸 Microsoft2a01:111:f000::/36
PTRmail-mw2pr02cu00603.inbound.protection.outlook.com
A2a01:111:f403:c922::🇺🇸 Microsoft2a01:111:f000::/36
PTRmail-bl0pr03cu00200.inbound.protection.outlook.com
A2a01:111:f403:f903::🇺🇸 Microsoft2a01:111:f000::/36
A2a01:111:f403:f905::3🇺🇸 Microsoft2a01:111:f000::/36
PTRmail-dm5pr02cu00203.inbound.protection.outlook.com
A52.101.8.51🇺🇸 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-dm1pr04cu00203.inbound.protection.outlook.com
A52.101.41.183🇺🇸 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-byapr04cu00307.inbound.protection.outlook.com
A52.101.50.7🇺🇸 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-co1pr21cu00207.inbound.protection.outlook.com
A52.101.50.10🇺🇸 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-mw2pr02cu00502.inbound.protection.outlook.com
TXTv=spf1 include:spf.protection.outlook.com ~all

groupc.com

DNSSEC⚠️ Not signed
A2606:4700:3032::ac43:99ac🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::6815:20b6🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.32.182Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.153.172🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSbob.ns.cloudflare.com ⭐
NSkay.ns.cloudflare.com
MXgroupc-com.mail.protection.outlook.com ⭐
TXT4m120q1l824l7nu56r9jdosp5k
TXTca3-b811c367bb7a4f3788a7fa8c15dd3cce
TXTgoogle-site-verification=SQe-yk5OOOGSZixECoiL82Nbyyuu9xN-h1Bbbv2OckM
TXTv=spf1 mx ip4:162.159.135.42 ip4:72.32.188.33 ip4:162.159.134.42 include:spf....
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4104.21.32.182, 172.67.153.172
IPv62606:4700:3032::ac43:99ac, 2606:4700:3037::6815:20b6
SOAbob.ns.cloudflare.comdns@cloudflare.com serial=2399725935
WOT: SAFE (60/100)

Previously MX for

facilitycity.com

Same first word

mail.org.nz
mail.chicappa.jp
mail.123hjemmeside.no
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mail.ufcfan.org
mail.ge
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mail.run
mail.co.education
mail.edu.rs
mail.lt
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mail.4u.com
mail.edu.tw
mail.gov.rs
mail.dnsalias.net
mail.pro.br
mail.ne.jp
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mail.be
mail.com.vn
mail.how
mail.in-brb.de
mail.ro
mail.com.hk
mail.neustar
mail.ao
mail.pw
mail.broker
mail.school
mail.land
mail.yahoo
mail.edu.ge
mail.ps
mail.edu.ee
mail.gouv.ci
mail.gi
mail.fr
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mail.org.br
mail.technology
mail.edu.ru
mail.edu.az
mail.global
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DNS History

3 records (1 active, 2 former)

2008201020122014201620182020202220242026MXmail-groupc-com.mail.protection.outlook.comA66.252.166.234CNAMEgc2.groupc.com
●MXmail-groupc-com.mail.protection.outlook.com2026-03-24 → 2026-03-24 · 1 obs
● 2026-03-24 20:54:10
○A66.252.166.2342007-11-27 → 2007-11-27 · 3 obs
● 2007-11-27 05:17:36
○ 2015-10-15 21:03:14
○ 2026-03-24 20:54:10
○CNAMEgc2.groupc.com2007-11-27 → 2007-11-27 · 3 obs
● 2007-11-27 05:17:36
○ 2015-10-15 21:03:14
○ 2026-03-24 20:54:10

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comk.gtld-servers.net, a.gtld-servers.net, j.gtld-servers.net, m.gtld-servers.net...-
groupc.combob.ns.cloudflare.com, kay.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.192.125

NS records: bob.ns.cloudflare.com, kay.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for groupc.com (unsigned zone)

⏱️ Timing

Total: 190ms | Queries: -

📄 Records

TypeCountSample Data
MX1mail-groupc-com.mail.protection.outlook.
TXT1v=spf1 include:spf.protection.outlook.co

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (bob.ns.cloudflare.com, bob.ns.cloudflare.com, bob.ns.cloudflare.com...)

Analysis

Mail Servers

mail.groupc.com is handled by a single mail server, mail-groupc-com.mail.protection.outlook.com.

mail-groupc-com.mail.protection.outlook.com points to eight IP numbers: 2a01:111:f403:c91d::b, 2a01:111:f403:c922::, 2a01:111:f403:f903::, 2a01:111:f403:f905::3, 52.101.8.51, 52.101.41.183, 52.101.50.7 and 52.101.50.10.