Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
kirtonbuildings.co.uk
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-14 02:51:43 UTC · ↺ Refresh
MX Hostnames
- st2.mx.email-filter.net
- st3.mx.email-filter.net
MX Priorities
- st2.mx.email-filter.net: 10
- st3.mx.email-filter.net: 40
A / AAAA Records
- 185.136.248.114 ↩ web1-urbanfeather.dedicated-solution.com
Mail Server IPs
- 84.18.194.42 ↩ st0.mx.email-filter.net
- 194.176.124.242 ↩ st4.mx.email-filter.net
SOA Record
Raw SOA
ns587.hosted-ns.net alerts.support.catalyst2.com 2026030401 3600 1800 1209600 86400
Primary NS (mname)
ns587.hosted-ns.net
Admin Email (rname)
alerts@support.catalyst2.com
Serial
2026030401
Refresh
3600s
Retry
1800s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns588.hosted-ns.net
ns587.hosted-ns.net
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:185.136.248.114 ip4:84.18.207.54 +a +mx ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ MissingNo 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- SPFv=spf1 ip4:185.136.248.114 ip4:84.18.207.54 +a +mx ~all
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