mail.mcbuilders.net - robtex.com

mail.mcbuilders.net

DNSSEC⚠️ Not signed
A216.239.226.166🇺🇸 DATA393216.239.224.0/20 Data393 Colocation
PTRositmail.com

mcbuilders.net

DNSSEC🔒 Signed (DS record present)
A2606:4700:3030::ac43:ad24🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::6815:37d1🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.55.209Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.173.36🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSgrace.ns.cloudflare.com ⭐
NSkanye.ns.cloudflare.com
MXmcbuilders-net.mail.protection.outlook.com ⭐
TXTMS=ms89013415
TXTintacct-esk=1FBE4A6EE284780EE0636A06710AE27B
TXTsophos-domain-verification=688a537839cbcb653c8079cc49c9d39d76661f71
TXTsophos-domain-verification=fd4ce4c4940db02f06f6463bc762428364565946128d916562...
TXTv=spf1 mx:rcofusa.com include:_spf.prod.hydra.sophos.com include:spf.protecti...
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.55.209, 172.67.173.36
IPv6 hints2606:4700:3030::ac43:ad24, 2606:4700:3037::6815:37d1
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=108, name=cloudflare-ech.com
SOAgrace.ns.cloudflare.comdns@cloudflare.com serial=2402830635

PTR for

77.187.38.65.in-addr.arpa
68.187.38.65.in-addr.arpa

Previously MX for

mcbuilders.net

Same first word

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DNS History

1 record (1 active, 0 former)

20162017201820192020202120222023202420252026A216.239.226.166
●A216.239.226.1662015-06-19 → 2026-05-10 · 2 obs
● 2015-06-19 09:10:28
● 2026-05-10 15:49:18

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
netm.gtld-servers.net, k.gtld-servers.net, b.gtld-servers.net, f.gtld-servers.net...-
mcbuilders.netgrace.ns.cloudflare.com, kanye.ns.cloudflare.com-

✅ Authoritative Response

Server:172.64.33.189

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

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 1681ms | Queries: -

📄 Records

TypeCountSample Data
A1216.239.226.166

Analysis

IP Addresses

mail.mcbuilders.net points to a single IP: 216.239.226.166.

Other host names such as mail.bowerstactical.com and mail.outsourceit.com share IP numbers with mail.mcbuilders.net.