mail.sof.vn - dns.ninja

`mail.sof.vn`

CNAME	`mail9209.maychuemail.com`
DNSSEC	⚠️ Not signed
A	112.213.92.9^{🇻🇳 SUPERDATA112.213.92.0/24 Vietnam Internet Network Information Center (VNNIC) 18 Nguyen Du Str, Hai Ba Trung District, Hanoi City, Vietnam 24th floor, VNTA Tower, Duong Dinh Nghe, Cau Giay, Hanoi}
		PTR	`mail9209.maychuemail.com`

`sof.vn`

	DNSSEC	⚠️ Not signed
	A	113.161.119.225^{🇻🇳 VTN-1113.161.112.0/21 VNPT-Net}
	NS	`ns1.dotvndns.vn` ⭐
	NS	`ns2.dotvndns.vn`
	NS	`nsbak.dotvndns.com`
	MX	`mail9209.maychuemail.com` ⭐
	MX	`mx9209.maychuemail.net`⁽¹⁰⁾
	TXT	`v=spf1 include:spf.maychuemail.com ~all`
	SOA	`ns1.dotvndns.vn`hostmaster@sof.vn 2026-07-21 #91

Previously MX for

sof.vn

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DNS History

3 records (1 active, 2 former)

○A115.79.215.2272015-12-02 → 2016-08-21 · 5 obs

○ 2015-11-07 03:03:40
● 2015-12-02 12:08:32
● 2016-08-21 09:27:20
○ 2026-04-05 21:23:12
○ 2026-07-30 17:30:02

○A115.79.43.1572015-06-30 → 2015-11-07 · 4 obs

● 2015-06-30 22:44:50
● 2015-11-07 03:03:40
○ 2015-12-02 12:08:32
○ 2026-07-30 17:30:02

●CNAMEmail9209.maychuemail.com2026-04-05 → 2026-07-30 · 2 obs

● 2026-04-05 21:23:12
● 2026-07-30 17:30:02

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
vn	a.dns-servers.vn, b.dns-servers.vn, c.dns-servers.vn, d.dns-servers.vn...	-
sof.vn	nsbak.dotvndns.com, ns1.dotvndns.vn, ns2.dotvndns.vn	4 records

✅ Authoritative Response

Server:112.213.89.22

NS records: nsbak.dotvndns.com, ns1.dotvndns.vn, ns2.dotvndns.vn

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sof.vn (unsigned zone)

⏱️ Timing

Total: 1716ms | Queries: -

📄 Records

Type	Count	Sample Data
CNAME	1	`mail9209.maychuemail.com`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns1.dotvndns.vn, ns2.dotvndns.vn, ns1.dotvndns.vn...)

Analysis

IP Addresses

mail.sof.vn resolves to just one IP address, 112.213.92.9.

Two other host names, along with mail9209.dotvndns.vn, mail929.maychuemail.com and mail.myway.com.vn, also share IP numbers with mail.sof.vn.