Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
nrl.co.uk
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-04-01 00:19:13 UTC · ↺ Refresh
MX Hostnames
- nrl-co-uk.mail.protection.outlook.com
MX Priorities
- nrl-co-uk.mail.protection.outlook.com: 10
A / AAAA Records
- 18.169.207.177 ↩ ec2-18-169-207-177.eu-west-2.compute.amazonaws.com
Mail Server IPs
- 52.101.73.1 ↩ mail-am3pr04cu00501.inbound.protection.outlook.com
- 52.101.68.16 ↩ mail-db4pr02cu00400.inbound.protection.outlook.com
- 52.101.68.15 ↩ mail-db6pr03cu00107.inbound.protection.outlook.com
- 52.101.73.153 ↩ mail-as8pr05cu00401.inbound.protection.outlook.com
- 2a01:111:f403:ca04::d ↩ mail-db6pr03cu00105.inbound.protection.outlook.com
- 2a01:111:f403:ca04::b ↩ mail-dbbpr03cu00103.inbound.protection.outlook.com
- 2a01:111:f403:ca09::1 ↩ mail-as9pr07cu00301.inbound.protection.outlook.com
- 2a01:111:f403:ca09::9 ↩ mail-as8pr04cu00801.inbound.protection.outlook.com
SOA Record
Raw SOA
noah.ns.cloudflare.com dns.cloudflare.com 2400370090 10000 2400 604800 1800
Primary NS (mname)
noah.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2400370090
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
noah.ns.cloudflare.com
tina.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:51.11.59.41 ip4:51.132.52.66 include:spf.protection.outlook.com include:spf.emailsignatures365.com include:partnermail.nrlgroup.co.uk ip4:167.89.96.153 ip4:46.236.31.126 ip4:80.87.128.137 ip4:23.21.122.59 include:eu-sender.zohobooks.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 5 found
selector1._domainkey
selector2._domainkey
default._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 392 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
10 records- apple-domain-verification=SuzPiaXrsmRBx5H9
- bw=huPp1a5SGJklnTyrRGpfus7PI7mJYtjGMJc/hrm7qHbG
- facebook-domain-verification=v4dj4lksax8djnzfrn6v54spq99v1r
- google-site-verification=XPyZiL9VdPD9UzRL_T5SCieLqSOY0Q7UPdCPXGvalTg
- google-site-verification=qroXfN2UjMzYgZM5UWprzm0VO3mAbVGs8GAZAHiNHtM
- have-i-been-pwned-verification=b87b426aa906110c219a482da1cb238d
- SPFv=spf1 ip4:51.11.59.41 ip4:51.132.52.66 include:spf.protection.outlook.com include:spf.emailsignatures365.com include:partnermail.nrlgroup.co.uk ip4:167.89.96.153 ip4:46.236.31.126 ip4:80.87.128.137 ip4:23.21.122.59 include:eu-sender.zohobooks.com -all
- JxfqGVJhTdosyJ7AFLBAfIoBrmDFzkfcoY4c8eG8ByuOGvIdDTMUPzXFCVMvJkwDTkoCrMNYqwKqfq3EAyYslw==
- access-domain-verification=f2d096a3f621ccbf1f969c3f82f154c81e7df5d873ead4c44c42801cc85a3924
- adobe-idp-site-verification=c78c3477188446918f67826058fff7addb2bf9dabc6247f1a43900e40c4a1f4b
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