🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`smtp6.gains.arrowcloudlinux.com`

DNSSEC	⚠️ Not signed
A	131.153.51.99^{🇸🇬 PHOENIXNAP-AS-SG1131.153.48.0/22 Customer Route}
		PTR	`smtp6.gains.arrowcloudlinux.com`

`gains.arrowcloudlinux.com`

	DNSSEC	⚠️ Not signed
	A	131.153.51.34^{🇸🇬 PHOENIXNAP-AS-SG1131.153.48.0/22 Customer Route}

PTR for

99.51.153.131.in-addr.arpa

Same first word

smtp6.com.cn

smtp6.com

smtp6.canva-apps.cn

Similar names

mtsp6.xyz

tpms6.com

mtsp6.com.cn

mtsp6.cc

6stpm.com

mtsp6.wiki

6mtsp.lol

mtsp6.live

stmp6.hzc.io

stmp6.it

Previous names

DNS History

1 record (1 active, 0 former)

●A131.153.51.992026-08-23 → 2026-10-16 · 2 obs

● 2026-08-23 21:54:04
● 2026-10-16 19:48:42

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	c.gtld-servers.net, e.gtld-servers.net, k.gtld-servers.net, b.gtld-servers.net...	-
arrowcloudlinux.com	ns1.arrowcloudlinux.com, ns2.arrowcloudlinux.com	2 records

✅ Authoritative Response

Server:131.153.51.37

NS records: ns1.arrowcloudlinux.com, ns2.arrowcloudlinux.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for arrowcloudlinux.com (unsigned zone)

⏱️ Timing

Total: 574ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`131.153.51.99`

📌 Glue Records Collected

Total: 2

In-bailiwick: 2 (ns1.arrowcloudlinux.com, ns2.arrowcloudlinux.com)

Analysis

IP Addresses

smtp6.gains.arrowcloudlinux.com points to a single IP number: 131.153.51.99.

smtp6.gains.arrowcloudlinux.com - robtex.com