Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
vblaw.com.vn
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-27 13:23:12 UTC · ↺ Refresh
MX Hostnames
- mx.viettelidc.com.vn
MX Priorities
- mx.viettelidc.com.vn: 10
A / AAAA Records
- 210.245.8.134 (no PTR)
Mail Server IPs
- 103.1.208.155 ↩ hl-smtp01.viettelidc.com.vn
- 103.1.208.156 ↩ hl-smtp02.viettelidc.com.vn
SOA Record
Raw SOA
ns1.dotvndns.vn hostmaster.vblaw.com.vn 2025062205 14400 3600 1209600 86400
Primary NS (mname)
ns1.dotvndns.vn
Admin Email (rname)
hostmaster@vblaw.com.vn
Serial
2025062205
Refresh
14400s
Retry
3600s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
nsbak.dotvndns.com
ns1.dotvndns.vn
ns2.dotvndns.vn
SPF Record
✓ Strict (-all)
v=spf1 ip4:103.1.208.0/24 a mx -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict 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 ip4:103.1.208.0/24 a mx -all
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