Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
boston-dentist.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-25 10:22:32 UTC · ↺ Refresh
MX Hostnames
- mx-01.tntsupport.net
MX Priorities
- mx-01.tntsupport.net: 10
A / AAAA Records
- 159.203.243.241 ↩ host-4.tntsupport.net
Mail Server IPs
- 8.40.242.176 ↩ mail-01.tntsupport.net
SOA Record
Raw SOA
ns.boston-dentist.com migrate.host-4.tntsupport.net 1711312111 10800 3600 604800 10800
Primary NS (mname)
ns.boston-dentist.com
Admin Email (rname)
migrate@host-4.tntsupport.net
Serial
1711312111
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
10800s
Nameservers (NS)
ns.boston-dentist.com
SPF Record
✓ Strict (-all)
v=spf1 mx a:mail-01.tntsupport.net -all
📊 DNS lookups: 2/10
✓ 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
1 record- SPFv=spf1 mx a:mail-01.tntsupport.net -all
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