`mx2.caltech.iphmx.com`

	DNSSEC	⚠️ Not signed
	A	68.232.137.147^{🇺🇸 CISCO-168.232.137.0/24 170 West Tasman Drive San Jose CA 95134 United States}
	A	68.232.147.192^{🇺🇸 CISCO-168.232.147.0/24 170 West Tasman Drive San Jose CA 95134 United States}

`caltech.iphmx.com`

DNSSEC

⚠️ Not signed

MX for

einstein.caltech.edu

galcit.caltech.edu

math.caltech.edu

votingtechnologyproject.org

kiss.caltech.edu

cco.caltech.edu

srl.caltech.edu

mems.caltech.edu

submm.caltech.edu

dna.caltech.edu

eas.caltech.edu

klab.caltech.edu

bologna.vision.caltech.edu

z.caltech.edu

ovro.caltech.edu

admissions.caltech.edu

irastro.caltech.edu

imss.caltech.edu

its.caltech.edu

vis.caltech.edu

hep.caltech.edu

design.caltech.edu

tapir.caltech.edu

ned.ipac.caltech.edu

cns.caltech.edu

aero.caltech.edu

hss.caltech.edu

sms.caltech.edu

vigeland.paradise.caltech.edu

paradise.caltech.edu

phobos.caltech.edu

centrosome.dna.caltech.edu

pma.caltech.edu

nupack.org

mmarray.org

entforum.caltech.edu

aphms.caltech.edu

cds.caltech.edu

caltech.edu

chic.caltech.edu

studaff.caltech.edu

ad.caltech.edu

astro.caltech.edu

cacr.caltech.edu

systems.caltech.edu

spitzer.caltech.edu

vision.caltech.edu

theory.caltech.edu

capsi.caltech.edu

hpc.caltech.edu

Previously MX for

odb.acs.caltech.edu

tmt.org

Same first word

mx2.nl

mx2.llc

mx2.solutions

mx2.jp

mx2.memset.net

mx2.co

mx2.fr

mx2.se

mx2.uni5.net

mx2.dk

mx2.pb.gov.br

mx2.ru

mx2.cci.fr

mx2.me

mx2.uk

mx2.cc

mx2.dev

mx2.us

mx2.mx

mx2.sp.gov.br

mx2.vip

mx2.it

mx2.dnsup.net

mx2.in

mx2.info

mx2.live

mx2.gouv.km

mx2.nz

mx2.pl

mx2.cloudaccess.net

mx2.mil.lv

mx2.my

mx2.vg

mx2.com

mx2.io

mx2.life

mx2.mobi

mx2.email

mx2.bplaced.net

mx2.org

mx2.kinghost.net

mx2.eu

mx2.agency

mx2.gov.lk

mx2.kapsi.fi

mx2.red

mx2.gov.ru

mx2.net

mx2.in-berlin.de

mx2.hu

mx2.law

mx2.tuxfamily.org

mx2.at

mx2.cn

mx2.de

mx2.ca

Similar names

m2x.app

2mx.info

2xm.pt

m2x.net

xm2.com

2mx.nl

x2m.info

m2x.de

x2m.cn

2mx.ro

2mx.com.br

2xm.com

m2x.it

x2m.ru

2xm.cn

m2x.nl

m2x.alwaysdata.net

2mx.de

2mx.xyz

xm2.ru

2mx.com

xm2.it

x2m.org

m2x.ca

2mx.dev

2xm.dk

m2x.com

2xm.eu

2xm.de

2mx.eu

xm2.life

2xm.com.br

xm2.net

2xm.com.pl

m2x.fr

2mx.it

2mx.cn

2xm.pl

x2m.com

2mx.uk

xm2.casino

m2x.org

m2x.cz

m2x.com.tw

xm2.cn

m2x.io

xm2.org

m2x.eu

2mx.cc

m2x.cn

x2m.co.za

2mx.net

2mx.ru

2mx.fr

x2m.de

2mx.org

x2m.casino

DNS History

4 records (2 active, 2 former)

●A68.232.137.1472017-08-20 → 2026-07-29 · 9 obs

● 2017-08-20 19:30:54
● 2026-06-11 08:25:36
○ 2026-06-11 08:59:18
● 2026-06-11 14:11:40
○ 2026-06-26 15:46:10
● 2026-06-26 16:52:50
○ 2026-07-09 07:10:52
● 2026-07-09 12:29:42
● 2026-07-29 12:42:16

●A68.232.147.1922017-08-20 → 2026-07-29 · 9 obs

○A68.232.148.1322017-08-20 → 2020-12-24 · 4 obs

● 2017-08-20 19:30:54
● 2020-12-24 14:25:30
○ 2026-02-14 16:27:38
○ 2026-07-29 12:42:16

○A68.232.157.2382017-08-20 → 2020-12-24 · 4 obs

● 2017-08-20 19:30:54
● 2020-12-24 14:25:30
○ 2026-02-14 16:27:38
○ 2026-07-29 12:42:16

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
iphmx.com	use1.akam.net, ns1-93.akam.net, ns1-11.akam.net, ns1-73.akam.net...	-

✅ Authoritative Response

Server:72.246.46.64

NS records: use1.akam.net, ns1-93.akam.net, ns1-11.akam.net, ns1-73.akam.net, ns1-90.akam.net, ns1-109.akam.net, ns1-117.akam.net, asia3.akam.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for iphmx.com (unsigned zone)

⏱️ Timing

Total: 234ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`68.232.137.147, 68.232.147.192`

Analysis

Mail Server Role

The domains einstein.caltech.edu, galcit.caltech.edu, math.caltech.edu, votingtechnologyproject.org, kiss.caltech.edu and a few others have mx2.caltech.iphmx.com as their mail server.

mx1.caltech.iphmx.com and mx2.caltech.iphmx.com are commonly paired as mail servers.

IP Addresses

mx2.caltech.iphmx.com resolves to the IP addresses 68.232.137.147 and 68.232.147.192

Host names such as esa.caltech.iphmx.com and mx1.caltech.iphmx.com share IP numbers with mx2.caltech.iphmx.com.

mx2.caltech.iphmx.com - dns.ninja