Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
bluyonder.co.uk
Disposable
✓ Yes
Unknown
⚠ Yes
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-14 05:29:21 UTC · ↺ Refresh
MX Hostnames
- srv4.unstablemail.com
- aero4.unstablemail.com
MX Priorities
- aero4.unstablemail.com: 10
- srv4.unstablemail.com: 0
A / AAAA Records
No A/AAAA records found.
Mail Server IPs
- 146.190.223.124 ↩ aero4.unstablemail.com
- 146.190.212.90 ↩ srv4.unstablemail.com
SOA Record
Raw SOA
ns15.domaincontrol.com dns.jomax.net 2023071705 28800 7200 604800 600
Primary NS (mname)
ns15.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2023071705
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns15.domaincontrol.com
ns16.domaincontrol.com
SPF Record
✓ Strict (-all)
v=spf1 +a +mx -all
📊 DNS lookups: 2/10
✓ 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 -all
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