jackbuck.co.uk

Valid Email Server
Domain Lookup › jackbuck.co.uk

Domain Overview

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

Checked via [email protected] · 2026-03-27 09:46:20 UTC · ↺ Refresh

MX Hostnames

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

MX Priorities

  • jackbuck-co-uk.mail.protection.outlook.com: 5

A / AAAA Records

  • 192.250.234.53 ↩ s1391.lon1.mysecurecloudhost.com

Mail Server IPs

  • 52.101.73.15 ↩ mail-am9pr04cu00107.inbound.protection.outlook.com
  • 52.101.68.15 ↩ mail-db6pr03cu00107.inbound.protection.outlook.com
  • 52.101.73.1 ↩ mail-am3pr04cu00501.inbound.protection.outlook.com
  • 52.101.73.22 ↩ mail-am7pr05cu00106.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::9 ↩ mail-as8pr04cu00801.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::5 ↩ mail-db3pr0202cu00205.inbound.protection.outlook.com

SOA Record

Raw SOA ns0.idnet.net hostmaster.idnet.net 2025110901 14400 14400 1209600 86400
Primary NS (mname)
ns0.idnet.net
Admin Email (rname)
hostmaster@idnet.net
Serial
2025110901
Refresh
14400s
Retry
14400s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

ns1.idnet.co.uk
ns0.idnet.net
ns1.idnet.net
ns0.idnet.co.uk

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

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

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

1 record
  • SPFv=spf1 include:spf.protection.outlook.com -all
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