first4cleaning.co.uk

Valid Email Server
Domain Lookup › first4cleaning.co.uk

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
first4cleaning.co.uk
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-04-02 13:35:23 UTC · ↺ Refresh

MX Hostnames

  • mx1.krystal.io
  • mx2.krystal.io

MX Priorities

  • mx1.krystal.io: 10
  • mx2.krystal.io: 20

A / AAAA Records

  • 77.72.2.133 ↩ p133-lon.krystal-hosting.katapult.cloud

Mail Server IPs

  • 185.53.56.46 ↩ mx1.strikemail.co.uk
  • 185.53.56.44 ↩ mx1.strikemail.co.uk
  • 185.53.56.45 ↩ mx2.strikemail.co.uk
  • 185.53.56.47 ↩ mx2.strikemail.co.uk

SOA Record

Raw SOA ns1.krystal.uk admin.demo.p133.lon.krystal.io 2026022301 3600 1800 1209600 86400
Primary NS (mname)
ns1.krystal.uk
Admin Email (rname)
admin@demo.p133.lon.krystal.io
Serial
2026022301
Refresh
3600s
Retry
1800s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

ns1.krystal.uk
ns2.krystal.uk

SPF Record

✗ Missing

No SPF record — domain is unprotected against spoofing.

⚠ No SPF record found. Email servers cannot verify authorized senders.

DMARC Record

✗ Missing

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

DKIM Selectors

✓ 1 found
default._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: default

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

1 record
  • google-site-verification=7Qm_TB6df355NyOKe6z1j-dXGZczVG1v8T9oC2hLF3A
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