Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
zen.co.uk
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-24 03:24:28 UTC · ↺ Refresh
MX Hostnames
- mailcluster.zen.co.uk
MX Priorities
- mailcluster.zen.co.uk: 10
A / AAAA Records
- 3.254.22.7 ↩ ec2-3-254-22-7.eu-west-1.compute.amazonaws.com
- 99.80.26.138 ↩ ec2-99-80-26-138.eu-west-1.compute.amazonaws.com
- 52.30.132.10 ↩ ec2-52-30-132-10.eu-west-1.compute.amazonaws.com
Mail Server IPs
- 212.23.6.67 ↩ bastion04.mail.zen.net.uk
- 212.23.3.121 ↩ bastion02.mail.zen.net.uk
SOA Record
Raw SOA
ns0.zen.co.uk dnsmaster.zen.co.uk 2026022076 2400 900 604800 86400
Primary NS (mname)
ns0.zen.co.uk
Admin Email (rname)
dnsmaster@zen.co.uk
Serial
2026022076
Refresh
2400s
Retry
900s
Expire
604800s
Minimum TTL
86400s
Nameservers (NS)
ns1.zen.co.uk
ns0.zen.co.uk
SPF Record
✓ Soft Fail (~all)
v=spf1 include:_spf.zen.co.uk include:_spfcoremail.zen.co.uk include:_spf.salesforce.com include:_spfmarketing.zen.co.uk include:servers.mcsv.net include:amazonses.com a:smtp.insmartcloud.com ~all
📊 DNS lookups: 7/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; aspf=r; adkim=r; ruf=mailto:[email protected]; fo=1
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 1 found
k1._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: k1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
10 records- MS=ms18630378
- pardot_70492_*=944dea585b85d793fb17932544b35f0d7ba0da3a318c9278e52f61fd41244e56
- facebook-domain-verification=q4kzb0rse6m2epy423ia03ny8jf0u1
- amazonses:DdufgVBsi1Bgo+jUBF9Wvxt6Ei2WvlTczSf3vdfdS98=
- To report abuse, contact: [email protected]
- Zen Internet Ltd, Rochdale, UK. Tel: +44 (0)845 058 9000 or +44 (0)1706 902 000
- pardot_70492_*=d732b4699bb7c3c0f962bcfb6c4be83241345d8f183d162918f599df2fa34753
- google-site-verification=w399FSVtubq2pRkEDeXsV9p-2Hp_kTjazJQKoVAUvYI
- google-site-verification=IJ9dQm0M2_NMFj0ExwmmqDvM4F4Fxi9Sxsivrwwi_rI
- SPFv=spf1 include:_spf.zen.co.uk include:_spfcoremail.zen.co.uk include:_spf.salesforce.com include:_spfmarketing.zen.co.uk include:servers.mcsv.net include:amazonses.com a:smtp.insmartcloud.com ~all
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