sleeblackwell.co.uk

Valid Email Server
Domain Lookup › sleeblackwell.co.uk

Domain Overview

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

Checked via [email protected] · 2026-03-31 22:51:29 UTC · ↺ Refresh

MX Hostnames

  • eu-smtp-inbound-1.mimecast.com
  • eu-smtp-inbound-2.mimecast.com

MX Priorities

  • eu-smtp-inbound-2.mimecast.com: 10
  • eu-smtp-inbound-1.mimecast.com: 10

A / AAAA Records

  • 104.21.88.230 (no PTR)
  • 172.67.153.161 (no PTR)
  • 2606:4700:3031::6815:58e6 (no PTR)
  • 2606:4700:3036::ac43:99a1 (no PTR)

Mail Server IPs

  • 91.220.42.211 ↩ eu-smtp-inbound-2.mimecast.com
  • 91.220.42.201 ↩ eu-smtp-inbound-1.mimecast.com
  • 195.130.217.211 ↩ eu-smtp-inbound-1.mimecast.com
  • 91.220.42.241 ↩ eu-smtp-inbound-1.mimecast.com
  • 195.130.217.201 ↩ eu-smtp-inbound-1.mimecast.com
  • 195.130.217.241 ↩ eu-smtp-inbound-2.mimecast.com

SOA Record

Raw SOA anna.ns.cloudflare.com dns.cloudflare.com 2399861935 10000 2400 604800 1800
Primary NS (mname)
anna.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399861935
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

ken.ns.cloudflare.com
anna.ns.cloudflare.com

SPF Record

✓ Soft Fail (~all)
v=spf1 include:_netblocks.mimecast.com include:portalspf.lfsportal.com include:cloud.sorcewebdesign.co.uk ip4:91.192.192.171 ip4:91.192.192.172 ip4:46.17.91.134 ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

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

4 records
  • google-site-verification=Wcxtf7NAS1KzBeoz1bhWrw31Iz3gFdeJAK-9G4fZEyU
  • google-site-verification=YTsx7vAQnzOS1wizGHmNKAZp3b13MlSX3uzQ_d6THYc
  • SPFv=spf1 include:_netblocks.mimecast.com include:portalspf.lfsportal.com include:cloud.sorcewebdesign.co.uk ip4:91.192.192.171 ip4:91.192.192.172 ip4:46.17.91.134 ~all
  • MS=ms60191879
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