Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
blackbridge.co.uk
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-27 23:21:22 UTC · ↺ Refresh
MX Hostnames
- phil.kaizenit.co.uk
- grant.kaizenit.co.uk
MX Priorities
- phil.kaizenit.co.uk: 10
- grant.kaizenit.co.uk: 20
A / AAAA Records
- 134.213.150.107 (no PTR)
Mail Server IPs
- 52.210.182.148 ↩ smtp-ms1.kaizenit.co.uk
- 52.211.69.214 ↩ smtp-ms2.kaizenit.co.uk
SOA Record
Raw SOA
ns23.domaincontrol.com dns.jomax.net 2026020300 28800 7200 604800 600
Primary NS (mname)
ns23.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2026020300
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns23.domaincontrol.com
ns24.domaincontrol.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:144590214.spf04.hubspotemail.net a:concept.concept-hosted.net ip4:95.131.216.58 -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; pct=100; fo=1;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
3 records- SPFv=spf1 include:spf.protection.outlook.com include:144590214.spf04.hubspotemail.net a:concept.concept-hosted.net ip4:95.131.216.58 -all
- slack-domain-verification=71ny9CgfAvZcfI3obndGaI3N4475Aa7U4i5xx9iT
- MS=ms98158830
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