Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
aaarnold.co.uk
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-04-06 13:47:07 UTC · ↺ Refresh
MX Hostnames
- aaarnold-co-uk.mail.protection.outlook.com
MX Priorities
- aaarnold-co-uk.mail.protection.outlook.com: 10
A / AAAA Records
- 51.38.78.131 ↩ ip131.ip-51-38-78.eu
Mail Server IPs
- 52.101.68.10 ↩ mail-dbbpr03cu00102.inbound.protection.outlook.com
- 52.101.73.11 ↩ mail-am1pr04cu00103.inbound.protection.outlook.com
- 52.101.73.153 ↩ mail-as8pr05cu00401.inbound.protection.outlook.com
- 52.101.68.16 ↩ mail-db4pr02cu00400.inbound.protection.outlook.com
- 2a01:111:f403:ca09::6 ↩ mail-am4pr0401cu00106.inbound.protection.outlook.com
- 2a01:111:f403:ca04::8 ↩ mail-db5pr02cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca04::e ↩ mail-db8pr02cu00106.inbound.protection.outlook.com
- 2a01:111:f403:ca09::e ↩ mail-am7pr05cu00206.inbound.protection.outlook.com
SOA Record
Raw SOA
ns0.zen.co.uk netman.zen.co.uk 2013062430 2400 3600 604800 3600
Primary NS (mname)
ns0.zen.co.uk
Admin Email (rname)
netman@zen.co.uk
Serial
2013062430
Refresh
2400s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns1.zen.co.uk
ns0.zen.co.uk
SPF Record
✓ Strict (-all)
v=spf1 ip4:57.128.184.38 ip4:145.239.201.81 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 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
2 records- SPFv=spf1 ip4:57.128.184.38 ip4:145.239.201.81 include:spf.protection.outlook.com -all
- MS=ms24911696
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