Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
23md.co.uk
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-25 05:00:26 UTC · ↺ Refresh
MX Hostnames
- 23md-co-uk.mail.protection.outlook.com
MX Priorities
- 23md-co-uk.mail.protection.outlook.com: 0
A / AAAA Records
- 165.84.218.143 ↩ cloudhost-3243821.uk-south-2.nxcli.net
Mail Server IPs
- 52.101.68.25 ↩ mail-db8pr02cu00101.inbound.protection.outlook.com
- 52.101.73.22 ↩ mail-am7pr05cu00106.inbound.protection.outlook.com
- 52.101.73.8 ↩ mail-am0pr04cu00500.inbound.protection.outlook.com
- 52.101.73.6 ↩ mail-am6pr04cu00306.inbound.protection.outlook.com
- 2a01:111:f403:ca09::2 ↩ mail-am0pr83cu00402.inbound.protection.outlook.com
- 2a01:111:f403:ca09::8 ↩ mail-as2pr05cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca09::6 ↩ mail-am4pr0401cu00106.inbound.protection.outlook.com
- 2a01:111:f403:ca04::a ↩ mail-du0pr03cu00102.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.kloudns.co.uk dns-admin.katapult.io 1771601717 28800 7200 604800 3600
Primary NS (mname)
ns1.kloudns.co.uk
Admin Email (rname)
dns-admin@katapult.io
Serial
1771601717
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns2.kloudns.co.uk
ns1.kloudns.co.uk
ns3.kloudns.co.uk
ns4.kloudns.co.uk
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com ip4:160.153.137.19 ip4:188.121.43.194 ip4:188.121.43.201 ip4:146.20.161.10 -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict 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- SPFv=spf1 include:spf.protection.outlook.com ip4:160.153.137.19 ip4:188.121.43.194 ip4:188.121.43.201 ip4:146.20.161.10 -all
- MS=ms20528395
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