Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
landmarkdentistry.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-19 07:22:15 UTC · ↺ Refresh
MX Hostnames
- mail01.aspida.us
MX Priorities
- mail01.aspida.us: 10
A / AAAA Records
- 162.255.119.44 (no PTR)
Mail Server IPs
- 128.136.2.118 ↩ mail01.aspida.us
SOA Record
Raw SOA
dns1.registrar-servers.com hostmaster.registrar-servers.com 1684495199 43200 3600 604800 3601
Primary NS (mname)
dns1.registrar-servers.com
Admin Email (rname)
hostmaster@registrar-servers.com
Serial
1684495199
Refresh
43200s
Retry
3600s
Expire
604800s
Minimum TTL
3601s
Nameservers (NS)
dns1.registrar-servers.com
dns2.registrar-servers.com
SPF Record
✓ Strict (-all)
v=spf1 mx ip4:128.136.2.117 ip4:128.136.2.118 -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 1 found
s1._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: s1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 mx ip4:128.136.2.117 ip4:128.136.2.118 -all
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