`webmail.workoffice.com.vn`

CNAME	`workoffice.com.vn`
DNSSEC	⚠️ Not signed
A	202.92.4.98^{🇻🇳 VNPT-AS-VN202.92.4.0/22 INET-VN}
NS	`ns1.matbao.vn` ⭐
		A	13.250.228.99^{🇸🇬 Amazon13.250.0.0/15 EC2 SIN prefix}
			PTR	`ec2-13-250-228-99.ap-southeast-1.compute.amazonaws.com`
		A	103.110.128.60^{🇻🇳 AXYS-VN103.110.128.0/23}
NS	`ns2.matbao.vn`
		A	35.198.203.127^{🇸🇬 Google35.198.192.0/20}
			PTR	`127.203.198.35.bc.googleusercontent.com`
		A	103.138.89.11^{🇻🇳 VNPT-AS-VN103.138.88.0/23 VNPT-NET}
MX	`mail.workoffice.com.vn` ⭐
TXT	`v=spf1 mx include:103.75.184.25 -all`
SOA	`ns1.matbao.vn`admin@matbao.com 2026-04-10 #2

`workoffice.com.vn`

	DNSSEC	⚠️ Not signed
	A	202.92.4.98^{🇻🇳 VNPT-AS-VN202.92.4.0/22 INET-VN}
	NS	`ns1.matbao.vn` ⭐
	NS	`ns2.matbao.vn`
	MX	`mail.workoffice.com.vn` ⭐
	TXT	`v=spf1 mx include:103.75.184.25 -all`
	SOA	`ns1.matbao.vn`admin@matbao.com 2026-04-10 #2

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DNS History

1 record (1 active, 0 former)

●CNAMEworkoffice.com.vn2026-05-01 → 2026-05-13 · 2 obs

● 2026-05-01 15:29:02
● 2026-05-13 18:49:42

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
vn	a.dns-servers.vn, b.dns-servers.vn, c.dns-servers.vn, d.dns-servers.vn...	-
workoffice.com.vn	ns1.matbao.vn, ns2.matbao.vn	-

✅ Authoritative Response

Server:35.198.203.127

NS records: ns1.matbao.vn, ns2.matbao.vn

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for workoffice.com.vn (unsigned zone)

⏱️ Timing

Total: 1805ms | Queries: -

📄 Records

Type	Count	Sample Data
CNAME	1	`workoffice.com.vn`

Analysis

IP Addresses

webmail.workoffice.com.vn points to a single IP address: 202.92.4.98.

Other host names such as cpanel.workoffice.com.vn, cpcalendars.scarvietnam.vn, autodiscover.khoangsan3.com.vn, mail.magrisimex.com and novacity.com.vn share IPs with webmail.workoffice.com.vn.

Name Servers

Two name servers ns1.matbao.vn and ns2.matbao.vn handle the delegation for webmail.workoffice.com.vn.

webmail.workoffice.com.vn shares the same name server setup as other domains, for example trueconnect.vn, sapaishop.vn, bavieco.com, ffcvietnam.com.vn and gaphuquy.vn.

webmail.workoffice.com.vn at least partially shares name servers with other domains, for example kiabacninh.vn, dailonggroup.com, cassock.vn, crcsolar.com.vn and banhtrungthugiasi.vn.

These name servers are often used together with ns1.matbao.com, ns2.matbao.com, ns-bak.matbao.com, ns3.matbao.vn, ns4.matbao.vn, ns1.digipowerdns.com, ns2.digipowerdns.com, ns3.digipowerdns.com and ns4.digipowerdns.com.

Host names with two IP numbers:

ns1.matbao.vn points to 13.250.228.99 and 103.110.128.60.

ns2.matbao.vn points to 35.198.203.127 and 103.138.89.11.

Mail Servers

The mail.workoffice.com.vn mail server handles webmail.workoffice.com.vn.

The mail server setup for webmail.workoffice.com.vn is the same as that of other domains, for instance workoffice.com.vn.

webmail.workoffice.com.vn - robtex.com