Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
capitalspace.co.uk
Yes
✓ Yes
Barracuda
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-17 20:07:23 UTC · ↺ Refresh
MX Hostnames
- d242328.a.ess.uk.barracudanetworks.com
- d242328.b.ess.uk.barracudanetworks.com
MX Priorities
- d242328.a.ess.uk.barracudanetworks.com: 10
- d242328.b.ess.uk.barracudanetworks.com: 20
A / AAAA Records
- 20.77.41.58 ↩ veritas.uksouth.cloudapp.azure.com
Mail Server IPs
- 18.133.136.188 ↩ mail.ess.uk.barracuda.com
- 18.133.136.187 ↩ mail.ess.uk.barracuda.com
- 18.133.136.186 ↩ mail.ess.uk.barracuda.com
SOA Record
Raw SOA
ns.mainnameserver.com hostmaster.mainnameserver.com 2025081843 10800 600 2419200 3600
Primary NS (mname)
ns.mainnameserver.com
Admin Email (rname)
hostmaster@mainnameserver.com
Serial
2025081843
Refresh
10800s
Retry
600s
Expire
2419200s
Minimum TTL
3600s
Nameservers (NS)
ns.mainnameserver.com
ns2.mainnameserver.com
SPF Record
✓ Soft Fail (~all)
v=spf1 +a +ip4:51.104.229.147 include:_spf.psm.knowbe4.com include:spf.ess.uk.barracudanetworks.com include:spf.protection.outlook.com include:mail.hubcreate.com include:spf.mandrillapp.com ~all
📊 DNS lookups: 6/10
~ Soft fail (~all) — moderate 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
✓ 2 found
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: s1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
5 records- b5lfjm5i7btljkrq1foh29c1h0
- 53sncqgi93d3d8l398bfntr7dc
- 0ed1fe018a5aa1fcf904994a1cbc1607a4027c890e
- 3ili2s6p9c4607pjn3rb49bjnu
- SPFv=spf1 +a +ip4:51.104.229.147 include:_spf.psm.knowbe4.com include:spf.ess.uk.barracudanetworks.com include:spf.protection.outlook.com include:mail.hubcreate.com include:spf.mandrillapp.com ~all
Free · No signup required
Add email validation to your forms
Block disposable emails, validate MX records, detect role accounts — unlimited, forever free.
<script src="https://check.verifyswift.com/"></script>
One line of code · Works on any site
See demo & docs
Deep verification
Full email verification for capitalspace.co.uk
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits