mail.mrmcinc.com - robtex.com

mail.mrmcinc.com

DNSSEC⚠️ Not signed
A2606:4700:3031::6815:2e8b🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3034::ac43:8b33🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.46.139Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.139.51🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.46.139, 172.67.139.51
IPv6 hints2606:4700:3031::6815:2e8b, 2606:4700:3034::ac43:8b33
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=137, name=cloudflare-ech.com

mrmcinc.com

DNSSEC⚠️ Not signed
A2606:4700:3031::6815:2e8b🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3034::ac43:8b33🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.46.139Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.139.51🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSalexis.ns.cloudflare.com ⭐
NSjo.ns.cloudflare.com
MXmx.mrmcinc.com.cust.b.hostedemail.com ⭐
TXTv=spf1 include:_spf.hostedemail.com ~all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.46.139, 172.67.139.51
IPv6 hints2606:4700:3031::6815:2e8b, 2606:4700:3034::ac43:8b33
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=137, name=cloudflare-ech.com
SOAalexis.ns.cloudflare.comdns@cloudflare.com serial=2407771394

Previously MX for

mrmcinc.com

Same first word

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DNS History

5 records (4 active, 1 former)

20162017201820192020202120222023202420252026A104.21.46.139172.67.139.512606:4700:3031::6815:2e8b2606:4700:3034::ac43:8b3369.89.25.153
●A104.21.46.1392026-07-26 → 2026-07-26 · 3 obs
○ 2016-07-13 19:35:32
● 2026-07-26 20:50:12
● 2026-07-26 20:50:14
●A172.67.139.512026-07-26 → 2026-07-26 · 3 obs
○ 2016-07-13 19:35:32
● 2026-07-26 20:50:12
● 2026-07-26 20:50:14
●A2606:4700:3031::6815:2e8b2026-07-26 → 2026-07-26 · 3 obs
○ 2016-07-13 19:35:32
● 2026-07-26 20:50:12
● 2026-07-26 20:50:14
●A2606:4700:3034::ac43:8b332026-07-26 → 2026-07-26 · 3 obs
○ 2016-07-13 19:35:32
● 2026-07-26 20:50:12
● 2026-07-26 20:50:14
○A69.89.25.1532015-08-09 → 2016-07-13 · 4 obs
● 2015-08-09 14:00:40
● 2016-07-13 19:35:32
○ 2026-07-26 20:50:12
○ 2026-07-26 20:50:14

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
mrmcinc.comalexis.ns.cloudflare.com, jo.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.192.172

NS records: alexis.ns.cloudflare.com, jo.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for mrmcinc.com (unsigned zone)

⏱️ Timing

Total: 1330ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.46.139, 172.67.139.51
AAAA22606:4700:3031::6815:2e8b, 2606:4700:3034::ac43:8b33
HTTPS1{"priority":1,"target":".","alpn":["h3",

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

mail.mrmcinc.com has four IP addresses: 104.21.46.139, 172.67.139.51, 2606:4700:3031::6815:2e8b and 2606:4700:3034::ac43:8b33.