Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
preinbox.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-14 06:20:43 UTC · ↺ Refresh
MX Hostnames
- mail.preinbox.com
MX Priorities
- mail.preinbox.com: 10
A / AAAA Records
- 216.24.57.251 (no PTR)
- 216.24.57.7 (no PTR)
Mail Server IPs
- 155.138.206.115 ↩ 155.138.206.115.vultrusercontent.com
SOA Record
Raw SOA
dns1.registrar-servers.com hostmaster.registrar-servers.com 1753211092 43200 3600 604800 3601
Primary NS (mname)
dns1.registrar-servers.com
Admin Email (rname)
hostmaster@registrar-servers.com
Serial
1753211092
Refresh
43200s
Retry
3600s
Expire
604800s
Minimum TTL
3601s
Nameservers (NS)
dns2.registrar-servers.com
dns1.registrar-servers.com
SPF Record
✓ Soft Fail (~all)
v=spf1 mx ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 2 found
s1._domainkey
s2._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
2 records- DMARCv=DMARC1; p=none;
- SPFv=spf1 mx ~all
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