`in1.topicbox.com`

DNSSEC	⚠️ Not signed
A	103.168.172.233^{🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
		PTR	`phl-topicbox-02.messagingengine.com`

`topicbox.com`

	DNSSEC	⚠️ Not signed
	A	103.168.172.117^{🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
	A	103.168.172.118^{🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
	NS	`fmns1.messagingengine.com` ⭐
	NS	`fmns2.messagingengine.com`
	MX	`in1-smtp.messagingengine.com` ⭐
	MX	`in2-smtp.messagingengine.com`⁽²⁰⁾
	TXT	`v=spf1 include:spf.messagingengine.com ~all`
	SOA	`fmns1.messagingengine.com`postmaster@messagingengine.com 2026-05-12 #1

rank #268927 globally
rank #111429 in the tld
📈 Tranco rank: #423,353

MX for

www.topicbox.com

stage.topicbox.com

preview.topicbox.com

tb-mx1.topicbox.com

tb-mx0.topicbox.com

tb-beta0.topicbox.com

zfsonlinux.topicbox.com

Previously MX for

mx1.topicbox.com

mx0.topicbox.com

Same first word

in1.org

in1.me

in1.fr

in1.com

in1.info

in1.email

in1.com.ua

in1.place

in1.pl

in1.com.br

in1.ch

in1.lt

in1.be

in1.de

in1.vn

in1.net

in1.cn

in1.cc

in1.us

in1.kr

in1.cloudjiffy.net

in1.co

in1.herokuapp.com

in1.ru

in1.biz

in1.in

in1.cz

in1.no

in1.co.uk

Similar names

1in.it

1ni.co

n1i.cc

1ni.net

ni1.de

1in.in

ni1.org

1in.com.ua

1ni.us

1in.de

1ni.cc

ni1.net

n1i.de

i1n.cn

ni1.kr

n1i.ws

1in.co.kr

1in.nl

i1n.ru

1ni.ru

1in.info

n1i.akamaiedge.net

1ni.de

ni1.in

1ni.com

1in.org

1in.me

i1n.net

n1i.co

1in.co.il

i1n.com

ni1.com

1in.cn

1ni.cn

1in.kz

1ni.at

1in.com

1in.ch

1in.uk

1in.co.uk

1in.tw

1in.am

n1i.com

1in.cc

DNS History

1 record (1 active, 0 former)

●A103.168.172.2332026-04-25 → 2026-05-12 · 2 obs

● 2026-04-25 05:01:34
● 2026-05-12 16:02:36

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
topicbox.com	fmns1.messagingengine.com, fmns2.messagingengine.com	2 records

✅ Authoritative Response

Server:162.159.24.253

NS records: fmns1.messagingengine.com, fmns2.messagingengine.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for topicbox.com (unsigned zone)

⏱️ Timing

Total: 2571ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`103.168.172.233`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (fmns1.messagingengine.com, fmns2.messagingengine.com)

Analysis

Mail Server Role

in1.topicbox.com serves as a mail server for www.topicbox.com, stage.topicbox.com, preview.topicbox.com, tb-mx1.topicbox.com, tb-mx0.topicbox.com and several other domains.

in2.topicbox.com is commonly used as a mail server with in1.topicbox.com.

IP Addresses

in1.topicbox.com resolves to a single IP address: 103.168.172.233.

Other host names, such as phl-topicbox-02.messagingengine.com and mx1.topicbox.com, share IP numbers with in1.topicbox.com.

in1.topicbox.com - robtex.com

in1.topicbox.com

topicbox.com