`smtp01.dnb.com`

	DNSSEC	⚠️ Not signed
	A	204.254.175.240^{🇺🇸 AS701204.252.0.0/14 MCI Communications Services, LLC d/b/a Verizon Business}

`dnb.com`

	DNSSEC	🔒 Signed (DS record present)
	A	104.16.0.1^{Cloudflare104.16.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
	NS	`primaryns.dnb.com` ⭐
	NS	`a1-67.akam.net`
	NS	`a10-67.akam.net`
	NS	`a12-66.akam.net`
	NS	`a13-66.akam.net`
	NS	`a6-66.akam.net`
	NS	`a7-66.akam.net`
	MX	`dnb-com.mail.protection.outlook.com` ⭐
	TXT	`ibmid=a9def6cf-843c-4d36-8eca-2c307149bd63`
	TXT	`v=spf1 ip4:159.137.80.91 ip4:208.226.214.236 ip4:72.19.252.170 ip4:220.130.15...`
	TXT	`_hp7c20ah0ikfywn17wamfjh8p6786ox`
	TXT	`google-site-verification=ZVX3kiXRYyT5I8hIXfdxiVrgjftqr5S-waWjRxNXL0c`
	TXT	`jamf-site-verification=XQrh0aSdNcFbATnbldtvFw`
	TXT	`atlassian-domain-verification=owQCWYzgP3scaCY15u2L4MqN2a/Lda353UApAv4cEJPKscn...`
	TXT	`_t087nr0s8p25d17ouy1ln8ppt98veob`
	TXT	`_hc2sn83etkc85jlw447nruu9dhbpdy5`
	TXT	`_bvsecjccauqilzo2plgsj9vbrqpp1yw`
	TXT	`vertexinc-cloud-4c68f493-da79-4f7d-a07e-44d61f8c1b95`
	SOA	`primaryns.dnb.com`dnsadmin@dnb.com serial=2021085555

WOT: SAFE (82/100)
rank #2146 globally
rank #1149 in the tld
WOT: SAFE (82/100)
📈 Tranco rank: #6,450

MX for

imarketinc.com

Previously MX for

telebase.com

dnb.com

Same first word

smtp01.pr.gov.br

smtp01.com

smtp01.uni5.net

smtp01.kinghost.net

smtp01.gov.ru

smtp01.gov.ps

Similar names

smtp10.com

01tpms.cn

smtp10.kinghost.net

01tpms.com

smtp10.gov.tt

DNS History

1 record (1 active, 0 former)

●A204.254.175.2402015-06-27 → 2026-04-27 · 2 obs

● 2015-06-27 16:52:36
● 2026-04-27 18:49:20

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	b.gtld-servers.net, h.gtld-servers.net, m.gtld-servers.net, j.gtld-servers.net...	-
dnb.com	a13-66.akam.net, a1-67.akam.net, a7-66.akam.net, a12-66.akam.net...	-

✅ Authoritative Response

Server:23.211.133.66

NS records: a13-66.akam.net, a1-67.akam.net, a7-66.akam.net, a12-66.akam.net, a6-66.akam.net, a10-67.akam.net

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 478ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`204.254.175.240`

Analysis

Mail Server Role

smtp01.dnb.com serves as a mail server for imarketinc.com.

smtp02.dnb.com, smtp1.dnb.com and smtp2.dnb.com are commonly used as mail servers together with smtp01.dnb.com.

IP Addresses

smtp01.dnb.com resolves to one IP number: 204.254.175.240.

smtp01.dnb.com - robtex.com

smtp01.dnb.com

dnb.com