Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
greyjack.com
Disposable
✓ Yes
Unknown
⚠ Yes
Yes
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-14 01:34:31 UTC · ↺ Refresh
MX Hostnames
- mail.mailinator.com
MX Priorities
- mail.mailinator.com: 10
A / AAAA Records
- 206.71.179.90 ↩ www.stnicholascenter.org
Mail Server IPs
- 23.239.11.30 ↩ mail.mailinator.com
SOA Record
Raw SOA
ns1.mydyndns.org zone-admin.dyndns.com 2010120336 10800 1800 604800 1800
Primary NS (mname)
ns1.mydyndns.org
Admin Email (rname)
zone-admin@dyndns.com
Serial
2010120336
Refresh
10800s
Retry
1800s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
ns3137.dns.dyn.com
ns4131.dns.dyn.com
ns1195.dns.dyn.com
ns2197.dns.dyn.com
SPF Record
✗ MissingNo SPF record — domain is unprotected against spoofing.
⚠ No SPF record found. Email servers cannot verify authorized senders.
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
No TXT records found.
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