Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
smilingtoothdentistry.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 03:30:43 UTC · ↺ Refresh
MX Hostnames
- mail.smilingtoothdentistry.com
MX Priorities
- mail.smilingtoothdentistry.com: 10
A / AAAA Records
- 35.172.94.1 ↩ staticip.multiscreensite.com
- 100.24.208.97 ↩ staticip2.multiscreensite.com
Mail Server IPs
- 166.78.37.69 ↩ 1310270-server1.solution21.com
SOA Record
Raw SOA
ns1.smilingtoothdentistry.com info.solution21.com 2025041601 10800 3600 604800 10800
Primary NS (mname)
ns1.smilingtoothdentistry.com
Admin Email (rname)
info@solution21.com
Serial
2025041601
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
10800s
Nameservers (NS)
ns1.smilingtoothdentistry.com
ns2.smilingtoothdentistry.com
SPF Record
✓ Strict (-all)
v=spf1 +a +mx +a:1310270-server1.solution21.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
✗ 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 +a:1310270-server1.solution21.com -all
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