Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
southwest.com.vn
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-29 16:14:26 UTC · ↺ Refresh
MX Hostnames
- mail.southwest.com.vn
MX Priorities
- mail.southwest.com.vn: 10
A / AAAA Records
- 103.1.236.125 ↩ hcm.cadao.net
Mail Server IPs
- 45.117.170.2 ↩ mail.cadao.net
SOA Record
Raw SOA
vdc-hn01.vnn.vn postmaster.vnn.vn 2020030701 28800 7200 1209600 86400
Primary NS (mname)
vdc-hn01.vnn.vn
Admin Email (rname)
postmaster@vnn.vn
Serial
2020030701
Refresh
28800s
Retry
7200s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
hcm-server1.vnn.vn
vdc-hn01.vnn.vn
SPF Record
✓ Soft Fail (~all)
v=spf1 +a +mx +ip4:45.117.170.2 ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✗ None detectedNo DKIM records found for common selectors — your provider may use a custom selector name.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 +a +mx +ip4:45.117.170.2 ~all
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