Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
centrica.co.uk
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-20 07:28:13 UTC · ↺ Refresh
MX Hostnames
- centrica-co-uk.mail.protection.outlook.com
MX Priorities
- centrica-co-uk.mail.protection.outlook.com: 10
A / AAAA Records
- 98.83.184.133 ↩ ec2-98-83-184-133.compute-1.amazonaws.com
- 100.28.104.175 ↩ ec2-100-28-104-175.compute-1.amazonaws.com
- 54.157.108.158 ↩ ec2-54-157-108-158.compute-1.amazonaws.com
- 2600:1f18:297:ba18:6ddc:5d8f:6053:f003 (no PTR)
- 2600:1f18:297:ba24:b508:76de:f4a:df34 (no PTR)
- 2600:1f18:297:ba0e:7900:f622:48a8:f266 (no PTR)
Mail Server IPs
- 52.101.68.21 ↩ mail-db4pr02cu00205.inbound.protection.outlook.com
- 52.101.73.26 ↩ mail-as9pr05cu01302.inbound.protection.outlook.com
- 52.101.68.10 ↩ mail-dbbpr03cu00102.inbound.protection.outlook.com
- 52.101.68.0 ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
dns1.comlaude-dns.com dnstech.comlaude.com 1700234450 43200 7200 1209600 3600
Primary NS (mname)
dns1.comlaude-dns.com
Admin Email (rname)
dnstech@comlaude.com
Serial
1700234450
Refresh
43200s
Retry
7200s
Expire
1209600s
Minimum TTL
3600s
Nameservers (NS)
dns4.comlaude-dns.eu
dns1.comlaude-dns.com
dns2.comlaude-dns.net
dns3.comlaude-dns.co.uk
SPF Record
✓ Soft Fail (~all)
v=spf1 include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1; ri=3600
✓ 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
6 records- MS=ms80505933
- 5j3Zha9tYy1d//P07nDqGclRs2Qxc0DNX3AI+fvGGam0RQUQHvWG5ipdWjKOmks+p4O7jLjQDVulbO7kGGlmSg==
- SPFv=spf1 include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email ~all
- docusign=4479f0b3-889a-42c5-a828-8be42f5dfb53
- miro-verification=8022b15b41cad5c7f04eb41dfde1d02aa8064c43
- apple-domain-verification=vGhuNG4OJHTxKTag
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