mail.mrmd.com - robtex.com

mail.mrmd.com

DNSSEC⚠️ Not signed
A2606:4700:3032::ac43:a874🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::6815:2e6f🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.46.111Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.168.116🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
MX_dc-mx.e0f366302749.mail.mrmd.com ⭐
A47.37.168.84🇺🇸 Charter_Communications47.37.128.0/18
PTRsyn-047-037-168-084.res.spectrum.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4104.21.46.111, 172.67.168.116
IPv62606:4700:3032::ac43:a874, 2606:4700:3037::6815:2e6f

mrmd.com

DNSSEC⚠️ Not signed
A2606:4700:3032::ac43:a874🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::6815:2e6f🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.46.111Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.168.116🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSgarret.ns.cloudflare.com ⭐
NSrosalyn.ns.cloudflare.com
TXTv=spf1 a mx ~all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4104.21.46.111, 172.67.168.116
IPv62606:4700:3032::ac43:a874, 2606:4700:3037::6815:2e6f
SOAgarret.ns.cloudflare.comdns@cloudflare.com serial=2398242252

Same first word

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DNS History

6 records (5 active, 1 former)

MX_dc-mx.e0f366302749.mail.mrmd.comA104.21.46.111172.67.168.1162606:4700:3032::ac43:a8742606:4700:3037::6815:2e6f47.37.168.84
●MX_dc-mx.e0f366302749.mail.mrmd.com2026-02-24 → 2026-03-26 · 2 obs
● 2026-02-24 11:14:42
● 2026-03-26 01:38:34
●A104.21.46.1112026-02-24 → 2026-03-26 · 2 obs
● 2026-02-24 11:14:42
● 2026-03-26 01:38:34
●A172.67.168.1162026-02-24 → 2026-03-26 · 2 obs
● 2026-02-24 11:14:42
● 2026-03-26 01:38:34
●A2606:4700:3032::ac43:a8742026-02-24 → 2026-03-26 · 2 obs
● 2026-02-24 11:14:42
● 2026-03-26 01:38:34
●A2606:4700:3037::6815:2e6f2026-02-24 → 2026-03-26 · 2 obs
● 2026-02-24 11:14:42
● 2026-03-26 01:38:34
○A47.37.168.842026-02-24 → 2026-03-26 · 2 obs
○ 2026-02-24 11:14:42
○ 2026-03-26 01:38:34

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
mrmd.comrosalyn.ns.cloudflare.com, garret.ns.cloudflare.com12 records

✅ Authoritative Response

Server:172.64.34.59

NS records: rosalyn.ns.cloudflare.com, garret.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for mrmd.com (unsigned zone)

⏱️ Timing

Total: 137ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.168.116, 104.21.46.111
AAAA22606:4700:3032::ac43:a874, 2606:4700:3037::6815:2e6f
MX1_dc-mx.e0f366302749.mail.mrmd.com (pri:
HTTPS1{"priority":1,"target":".","alpn":["h3",

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

mail.mrmd.com points to four IP numbers: 2606:4700:3032::ac43:a874, 2606:4700:3037::6815:2e6f, 104.21.46.111 and 172.67.168.116.

Other host names, for instance dns1.hostingveloce.com, legacy-derm.com, jaypritzkerpavilion.com, starcoreexchange.co.uk and amazingdistance.com share IP numbers with mail.mrmd.com.

Mail Servers

mail.mrmd.com is served by a single mail server, _dc-mx.e0f366302749.mail.mrmd.com.

_dc-mx.e0f366302749.mail.mrmd.com points to IP number 47.37.168.84.