Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
dbm.com.vn
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-23 02:09:16 UTC · ↺ Refresh
MX Hostnames
- dbm-com-vn.mail.protection.outlook.com
MX Priorities
- dbm-com-vn.mail.protection.outlook.com: 0
A / AAAA Records
- 103.138.88.87 (no PTR)
- 2404:c6c0::87 (no PTR)
Mail Server IPs
- 52.101.124.117 ↩ mail-tydpr03cu00105.inbound.protection.outlook.com
- 52.101.157.80 ↩ mail-os8pr02cu00100.inbound.protection.outlook.com
- 52.101.137.0 ↩ mail-sg2pr03cu00500.inbound.protection.outlook.com
- 2a01:111:f403:cc09:: ↩ mail-sg2pr03cu00500.inbound.protection.outlook.com
- 2a01:111:f403:cc1a::8 ↩ mail-tydpr03cu00100.inbound.protection.outlook.com
- 2a01:111:f403:cc1f::4 ↩ mail-os8pr02cu00104.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.matbao.vn admin.matbao.com 2025021702 7200 1800 1209600 3600
Primary NS (mname)
ns1.matbao.vn
Admin Email (rname)
admin@matbao.com
Serial
2025021702
Refresh
7200s
Retry
1800s
Expire
1209600s
Minimum TTL
3600s
Nameservers (NS)
ns1.matbao.vn
ns2.matbao.vn
SPF Record
✓ Strict (-all)
v=spf1 mx include:emailserver.vn include:spf.protection.outlook.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✓ 1 found
default._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: default
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- MS=ms49115636
- SPFv=spf1 mx include:emailserver.vn include:spf.protection.outlook.com -all
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