dsco.co.uk

Valid Email Server
Domain Lookup › dsco.co.uk

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
dsco.co.uk
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-22 01:27:57 UTC · ↺ Refresh

MX Hostnames

  • dsco-co-uk.mail.protection.outlook.com

MX Priorities

  • dsco-co-uk.mail.protection.outlook.com: 0

A / AAAA Records

  • 35.178.67.125 ↩ ec2-35-178-67-125.eu-west-2.compute.amazonaws.com

Mail Server IPs

  • 52.101.73.6 ↩ mail-am6pr04cu00306.inbound.protection.outlook.com
  • 52.101.68.10 ↩ mail-dbbpr03cu00102.inbound.protection.outlook.com
  • 52.101.68.18 ↩ mail-db4pr02cu00302.inbound.protection.outlook.com
  • 52.101.68.39 ↩ mail-db7pr03cu00607.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::6 ↩ mail-db4pr02cu00406.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::1 ↩ mail-db7pr03cu00401.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::e ↩ mail-db8pr02cu00106.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::9 ↩ mail-as8pr04cu00801.inbound.protection.outlook.com

SOA Record

Raw SOA ns1-09.azure-dns.com hostmaster.itbuilder.co.uk 1310031266 10800 3600 604800 3600
Primary NS (mname)
ns1-09.azure-dns.com
Admin Email (rname)
hostmaster@itbuilder.co.uk
Serial
1310031266
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

ns3-09.azure-dns.org
ns4-09.azure-dns.info
ns1-09.azure-dns.com
ns2-09.azure-dns.net

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:itbesva.itbuilder.co.uk ip4:176.35.138.95 -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

DKIM Selectors

✗ None detected

No DKIM records found for common selectors — your provider may use a custom selector name.

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:itbesva.itbuilder.co.uk ip4:176.35.138.95 -all
  • MS=ms82813860
  • Foxit-domain-verification=941e9934638bd03d59f1dce83f844c22
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