crsw.co.uk

Valid Email Server
Domain Lookup › crsw.co.uk

Domain Overview

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

Checked via [email protected] · 2026-03-20 10:44:21 UTC · ↺ Refresh

MX Hostnames

  • mx02.hornetsecurity.com
  • mx01.hornetsecurity.com
  • mx03.hornetsecurity.com
  • mx04.hornetsecurity.com

MX Priorities

  • mx01.hornetsecurity.com: 10
  • mx04.hornetsecurity.com: 40
  • mx02.hornetsecurity.com: 20
  • mx03.hornetsecurity.com: 30

A / AAAA Records

  • 217.160.0.241 ↩ 217-160-0-241.elastic-ssl.ui-r.com
  • 2001:8d8:100f:f000::200 ↩ 2001-08d8-100f-f000-0000-0000-0000-0200.elastic-ssl.ui-r.com

Mail Server IPs

  • 94.100.132.8 ↩ mx01.hornetsecurity.com
  • 94.100.136.7 ↩ mx04.hornetsecurity.com
  • 94.100.136.8 ↩ mx02.hornetsecurity.com
  • 94.100.134.8 ↩ mx03.hornetsecurity.com

SOA Record

Raw SOA ns1057.ui-dns.org hostmaster.1and1.co.uk 2017053041 28800 7200 604800 300
Primary NS (mname)
ns1057.ui-dns.org
Admin Email (rname)
hostmaster@1and1.co.uk
Serial
2017053041
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s

Nameservers (NS)

ns1057.ui-dns.com
ns1057.ui-dns.org
ns1057.ui-dns.de
ns1057.ui-dns.biz

SPF Record

✓ Strict (-all)
v=spf1 mx a ip4:90.155.71.134 ip4:46.20.232.240/28 ip4:178.250.55.208/28 ip4:5.133.17.216/29 include:exchange.tatex.net include:spf.hornetsecurity.com. -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)

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

2 records
  • SPFv=spf1 mx a ip4:90.155.71.134 ip4:46.20.232.240/28 ip4:178.250.55.208/28 ip4:5.133.17.216/29 include:exchange.tatex.net include:spf.hornetsecurity.com. -all
  • MS=ms15102845
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