smtp.open-inc.com - robtex.com

smtp.open-inc.com

CNAMEsmtp.secureserver.net
DNSSEC⚠️ Not signed
A216.69.141.71🇺🇸 AS398101216.69.140.0/22
PTRosplibsmtp01-v01.prod.phx3.secureserver.net
A216.69.141.84🇺🇸 AS398101216.69.140.0/22
A216.69.141.113🇺🇸 AS398101216.69.140.0/22
NScns3.secureserver.net ⭐
A2603:5:2110::66🇺🇸 GODADDY-DNS2603:5:2110::/44
PTRcns3.godaddy.com
A97.74.97.102🇺🇸 GODADDY-DNS97.74.96.0/23
PTRcns3.godaddy.com
NScns4.secureserver.net
A2603:5:2210::66🇺🇸 GODADDY-DNS2603:5:2210::/44
PTRcns4.godaddy.com
A173.201.65.102🇺🇸 GODADDY-DNS173.201.64.0/23
PTRcns4.godaddy.com
SOAcns3.secureserver.netdns@jomax.net 2026-05-05 #1

open-inc.com

DNSSEC⚠️ Not signed
A3.33.251.168🇺🇸 Amazon3.33.240.0/20
A15.197.225.128🇺🇸 Amazon15.197.224.0/20
NSns41.domaincontrol.com ⭐
NSns42.domaincontrol.com
MXopeninc-com01b.mail.protection.outlook.com ⭐
TXTgoogle-site-verification=BMdSYyaQ8SGT7ML-JcCeNHg3IGMqSJbstn9jKxnDnpY
TXTv=spf1 include:secureserver.net -all
TXTNETORGFT7634600.onmicrosoft.com
SOAns41.domaincontrol.comdns@jomax.net 2026-04-20 #3

Previously MX for

open-inc.com

Same first word

smtp.lat
smtp.cl
smtp.mk
smtp.lu
smtp.id
smtp.eu
smtp.fail
smtp.bz
smtp.ro
smtp.pl
smtp.goog
smtp.news
smtp.j.scaleforce.net
smtp.lv
smtp.fr
smtp.store
smtp.gratis
smtp.co.at
smtp.gov.ps
smtp.gouv.sn
smtp.gov.rs
smtp.eu.org
smtp.sc.gov.br
smtp.in-berlin.de
smtp.appengine.flow.ch
smtp.kinghost.net
smtp.org
smtp.es-1.axarnet.cloud
smtp.co.kr
smtp.(0x787878)
smtp.co.nz
smtp.kz
smtp.com.tr
smtp.jcloud.kz
smtp.sp.gov.br
smtp.net.ru
smtp.edu.ee
smtp.j.layershift.co.uk
smtp.net.ua
smtp.hu
smtp.mail.pl
smtp.iki.fi
smtp.org.uk
smtp.at
smtp.com.au
smtp.tv
smtp.vg
smtp.ox.rs
smtp.co
smtp.su
smtp.net
smtp.dk
smtp.guru
smtp.io
smtp.cz
smtp.dedibox.fr
smtp.net.in
smtp.network
smtp.co.il
smtp.si
smtp.software
smtp.com.es
smtp.nhs.uk
smtp.ch
smtp.zone
smtp.pub
smtp.hosting
smtp.nu
smtp.tj
smtp.tools
smtp.com
smtp.com.mx
smtp.sk
smtp.co.hu
smtp.ws
smtp.uni5.net
smtp.jc.neen.it
smtp.vn
smtp.to
smtp.mircloud.host
smtp.demo.jelastic.com
smtp.gouv.km
smtp.hotmail
smtp.com.ph
smtp.be
smtp.nz
smtp.moe
smtp.re
smtp.ms
smtp.ca
smtp.paas.datacenter.fi
smtp.fm
smtp.co.ke
smtp.lt
smtp.fi.cloudplatform.fi
smtp.de
smtp.services
smtp.live
smtp.fi
smtp.uk
smtp.or.tz
smtp.cloudaccess.net
smtp.cat
smtp.az
smtp.dev
smtp.unicloud.pl
smtp.paas.massivegrid.com
smtp.mil.tw
smtp.it
smtp.solutions
smtp.pythonanywhere.com
smtp.li
smtp.ru
smtp.se
smtp.co.za
smtp.mydns.jp
smtp.gov.mn
smtp.gc.ca
smtp.me
smtp.fi.it
smtp.rs.gov.br
smtp.gov.ru
smtp.business
smtp.ooo
smtp.jelastic.saveincloud.net
smtp.in
smtp.net.au
smtp.to.gov.br
smtp.com.br
smtp.fun
smtp.agency
smtp.pt
smtp.myshopify.com
smtp.ee
smtp.im
smtp.jelastic.dogado.eu

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mtsp.org
mpst.pl
mtsp.gov.mk
mspt.org
pmst.cz
tpms.us
mtps.gob.sv
tmsp.de
tpms.training
spmt.jp
sptm.it
stpm.at
stmp.org.br
stmp.jp
mpst.de
pmst.nl
mstp.ca
mstp.fr
stpm.net
tsmp.cn
tmsp.jp
pmts.ph
tpms.mobi
mpst.ru
mtps.in
ptms.us
tsmp.club
tmps.nl
tsmp.com.au
stmp.nl
tpms.vn
tsmp.jp
tsmp.de
tpsm.co.uk
mpst.net
mtps.gov.br
pmts.fr
tpms.co.uk
ptsm.eu
stmp.co
tsmp.com
mspt.sk
spmt.cn
stpm.org
tmps.info
ptsm.us
mtsp.eu
ptms.com.my
tsmp.net
tsmp.eu
smpt.eu
pmts.com
tsmp.com.br
smpt.tk
tpms.dk
pmst.org
sptm.eu
ptms.net
stpm.pl
pstm.ru
pmst.ir
pstm.at
mpst.eu
stpm.ca
tmsp.no-ip.org
ptsm.ru
ptms.in
spmt.org
stpm.de
pstm.org
tpms.co.in
tmsp.email
sptm.org
mtsp.biz
tmsp.org
ptms.eu
pmst.cn
tmsp.ru

DNS History

8 records (1 active, 7 former)

20162017201820192020202120222023202420252026NScns1.secureserver.netgns1.secureserver.netgns2.secureserver.netgns3.secureserver.netA68.178.213.20368.178.213.3772.167.238.29CNAMEsmtp.secureserver.net
○NScns1.secureserver.net2015-10-09 → 2017-01-02 · 4 obs
● 2015-10-09 05:25:24
● 2017-01-02 05:38:22
○ 2026-03-26 06:18:42
○ 2026-05-11 05:02:00
○NSgns1.secureserver.net2015-10-09 → 2017-01-02 · 4 obs
● 2015-10-09 05:25:24
● 2017-01-02 05:38:22
○ 2026-03-26 06:18:42
○ 2026-05-11 05:02:00
○NSgns2.secureserver.net2015-10-09 → 2017-01-02 · 4 obs
● 2015-10-09 05:25:24
● 2017-01-02 05:38:22
○ 2026-03-26 06:18:42
○ 2026-05-11 05:02:00
○NSgns3.secureserver.net2015-10-09 → 2017-01-02 · 4 obs
● 2015-10-09 05:25:24
● 2017-01-02 05:38:22
○ 2026-03-26 06:18:42
○ 2026-05-11 05:02:00
○A68.178.213.2032015-09-01 → 2016-07-11 · 11 obs
● 2015-09-01 12:11:54
● 2015-10-21 01:00:02
○ 2015-10-25 12:21:42
○ 2015-11-18 02:29:04
● 2015-11-22 01:44:10
● 2015-11-23 02:44:24
○ 2015-12-01 23:53:02
○ 2016-05-11 02:28:12
● 2016-07-11 09:44:54
○ 2016-07-21 22:22:24
○ 2026-05-11 05:02:00
○A68.178.213.372015-09-01 → 2016-11-17 · 17 obs
● 2015-09-01 12:11:54
● 2015-11-07 07:23:54
○ 2015-11-18 02:29:04
○ 2015-12-01 23:53:02
● 2016-01-04 06:56:22
○ 2016-01-10 11:56:08
● 2016-01-17 05:43:22
○ 2016-02-08 01:41:12
○ 2016-07-11 09:44:54
● 2016-07-21 22:22:24
● 2016-08-13 07:03:00
○ 2016-08-23 23:48:04
○ 2016-09-09 08:21:56
● 2016-09-23 07:36:36
● 2016-11-17 11:50:50
○ 2017-01-02 05:38:22
○ 2026-05-11 05:02:00
○A72.167.238.292015-09-01 → 2017-01-02 · 23 obs
● 2015-09-01 12:11:54
● 2015-10-09 05:25:24
○ 2015-10-21 01:00:02
● 2015-10-25 12:21:42
○ 2015-11-07 07:23:54
● 2015-11-18 02:29:04
○ 2015-11-22 01:44:10
○ 2015-11-23 02:44:24
● 2015-12-01 23:53:02
○ 2016-01-04 06:56:22
● 2016-01-10 11:56:08
○ 2016-01-17 05:43:22
● 2016-02-08 01:41:12
● 2016-05-11 02:28:12
○ 2016-07-11 09:44:54
○ 2016-08-13 07:03:00
● 2016-08-23 23:48:04
● 2016-09-09 08:21:56
○ 2016-09-23 07:36:36
○ 2016-11-17 11:50:50
● 2017-01-02 05:38:22
○ 2026-03-26 06:18:42
○ 2026-05-11 05:02:00
●CNAMEsmtp.secureserver.net2015-09-01 → 2026-05-11 · 2 obs
● 2015-09-01 12:11:54
● 2026-05-11 05:02:00

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
open-inc.comns41.domaincontrol.com, ns42.domaincontrol.com4 records

✅ Authoritative Response

Server:173.201.68.21

NS records: ns41.domaincontrol.com, ns42.domaincontrol.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for open-inc.com (unsigned zone)

⏱️ Timing

Total: 177ms | Queries: -

📄 Records

TypeCountSample Data
CNAME1smtp.secureserver.net

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns41.domaincontrol.com, ns41.domaincontrol.com, ns42.domaincontrol.com...)

Analysis

IP Addresses

smtp.open-inc.com points to IPs: 216.69.141.71, 216.69.141.84 and 216.69.141.113.

Other host names, for instance smtp.europe.secureserver.net, osplibsmtp01-v01.prod.phx3.secureserver.net, mx0.123-reg.co.uk, mail.ps.com.pe and smtp.asia.secureserver.net share IP numbers with smtp.open-inc.com.

Name Servers

Two name servers cns3.secureserver.net and cns4.secureserver.net are delegated to smtp.open-inc.com.

smtp.open-inc.com uses the same name server configuration as other domains, such as geneva.footholds.net, ist-(0x736578)y.at, muchalls.footholds.net, freunde-online.at and domain-box.in.

smtp.open-inc.com at least partially shares name servers with other domains such as outmx-278.london.gridhost.co.uk, mass.systems, secureclick.net, caemployeehandbook.com and outmx-316.london.gridhost.co.uk.

These name servers are commonly used alongside ns1.tsohost.co.uk, dns.hosteurope.de and ns1.domainha(0x736578)pired.com.

Host names with two IPs:

cns3.secureserver.net points to 2603:5:2110::66 and 97.74.97.102.

cns4.secureserver.net points to 2603:5:2210::66 and 173.201.65.102.