krystal-clear.co.uk

Valid Email Server
Domain Lookup › krystal-clear.co.uk

Domain Overview

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

Checked via [email protected] · 2026-03-18 19:53:45 UTC · ↺ Refresh

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MX Hostnames

  • krystalclear-co-uk01i.mail.protection.outlook.com

MX Priorities

  • krystalclear-co-uk01i.mail.protection.outlook.com: 0

A / AAAA Records

  • 172.67.129.231 (no PTR)
  • 104.21.1.203 (no PTR)
  • 2606:4700:3034::6815:1cb
  • 2606:4700:3034::ac43:81e7

Mail Server IPs

  • 52.101.73.19 ↩ mail-as8pr04cu00803.inbound.protection.outlook.com
  • 52.101.68.21 ↩ mail-db4pr02cu00205.inbound.protection.outlook.com
  • 52.101.68.32 ↩ mail-db3pr0202cu00200.inbound.protection.outlook.com
  • 52.101.73.2 ↩ mail-as9pr07cu00302.inbound.protection.outlook.com
  • 2a01:111:f403:ca04:: ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::c ↩ mail-db9pr02cu00204.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::a ↩ mail-du0pr03cu00102.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::8 ↩ mail-as2pr05cu00100.inbound.protection.outlook.com

SOA Record

Raw SOA alexis.ns.cloudflare.com dns.cloudflare.com 2398085068 10000 2400 604800 1800
Primary NS (mname)
alexis.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398085068
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

alexis.ns.cloudflare.com
ollie.ns.cloudflare.com

SPF Record

✓ Soft Fail (~all)
v=spf1 redirect=_sru5cuuaz.sdmarc.net
📊 DNS lookups: 1/10

DMARC Record

✓ Reject
v=DMARC1; p=reject; sp=none; pct=100; ri=14400; fo=1; rua=mailto:[email protected]; ruf=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none

DKIM Selectors

✓ 3 found
selector1._domainkey
selector2._domainkey
mail._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

5 records
  • google-site-verification=ka9IE8DRdTYGt3a2CY7Kq6dKhW3Y1ez4yXlTow2_JIs
  • google-site-verification=rfsLVkR1QYc32f_hOpdzymDdp6F4kKcb4hZrs4Iy27o
  • SPFv=spf1 redirect=_sru5cuuaz.sdmarc.net
  • brevo-code:6bfc01aa1174db910dce16010065bcbf
  • google-site-verification=UXJeRK0t5lwdwUq6JuhxDVCzMq6QB7sKq-jRM3lfDM0
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