Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
smiletech.vn
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-14 03:44:26 UTC · ↺ Refresh
MX Hostnames
- mx2.onemail.vn
- mx1.onemail.vn
- mx3.onemail.vn
MX Priorities
- mx1.onemail.vn: 0
- mx2.onemail.vn: 0
- mx3.onemail.vn: 0
A / AAAA Records
- 103.72.97.83 (no PTR)
Mail Server IPs
- 103.216.116.14 ↩ mx1.smtp-in.onemail.vn
- 103.72.96.29 ↩ mx2.smtp-in.onemail.vn
- 103.56.162.10 ↩ mx3.smtp-in.onemail.vn
SOA Record
Raw SOA
ns1.dns.net.vn webmaster.dns.net.vn 1766162701 7200 1800 1209600 3600
Primary NS (mname)
ns1.dns.net.vn
Admin Email (rname)
webmaster@dns.net.vn
Serial
1766162701
Refresh
7200s
Retry
1800s
Expire
1209600s
Minimum TTL
3600s
Nameservers (NS)
ns1.dns.net.vn
ns2.dns.net.vn
SPF Record
✓ Soft Fail (~all)
v=spf1 include:_spf.onemail.vn ~all
📊 DNS lookups: 1/10
~ 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
2 records- SPFv=spf1 include:_spf.onemail.vn ~all
- google-site-verification=Z1gy_68qahwVglIENpGk9K7v-t5LuE1TrkLiPGWBjZE
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