Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
duncanandson.co.uk
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-29 17:22:12 UTC · ↺ Refresh
MX Hostnames
- uk-esec-02.heimdalsecurity.com
- uk-esec-01.heimdalsecurity.com
MX Priorities
- uk-esec-02.heimdalsecurity.com: 20
- uk-esec-01.heimdalsecurity.com: 10
A / AAAA Records
- 35.172.94.1 ↩ staticip.multiscreensite.com
Mail Server IPs
- 172.166.114.48 ↩ uk-esec-01.heimdalsecurity.com
- 172.166.114.49 ↩ uk-esec-01.heimdalsecurity.com
SOA Record
Raw SOA
ns1.systemdns.com hostmaster.systemdns.com 1752229850 10800 3600 300 60
Primary NS (mname)
ns1.systemdns.com
Admin Email (rname)
hostmaster@systemdns.com
Serial
1752229850
Refresh
10800s
Retry
3600s
Expire
300s
Minimum TTL
60s
Nameservers (NS)
ns3.systemdns.com
ns1.systemdns.com
ns2.systemdns.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf-esec-uk.heimdalsecurity.com include:spf.ess.uk.barracudanetworks.com include:spf.protection.outlook.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✗ None detectedNo 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
2 records- MS=ms18384695
- SPFv=spf1 include:spf-esec-uk.heimdalsecurity.com include:spf.ess.uk.barracudanetworks.com include:spf.protection.outlook.com -all
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