Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
coljoint.co.uk
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-21 20:52:55 UTC · ↺ Refresh
MX Hostnames
- mx2-eu.emailsecurity.app
- mx1-eu.emailsecurity.app
MX Priorities
- mx1-eu.emailsecurity.app: 10
- mx2-eu.emailsecurity.app: 20
A / AAAA Records
- 185.151.30.148 ↩ 185-151-30-148.ptr4.stackcp.net
- 2a07:7800::148 (no PTR)
Mail Server IPs
- 132.164.188.153 ↩ mx2-eu.emailsecurity.app
- 4.245.183.72 ↩ mx1-eu.emailsecurity.app
SOA Record
Raw SOA
ns1.nsmservices.co.uk hostmaster.stackdns.com 1725978548 1800 900 1209600 300
Primary NS (mname)
ns1.nsmservices.co.uk
Admin Email (rname)
hostmaster@stackdns.com
Serial
1725978548
Refresh
1800s
Retry
900s
Expire
1209600s
Minimum TTL
300s
Nameservers (NS)
ns4.nsmservices.co.uk
ns2.nsmservices.co.uk
ns3.nsmservices.co.uk
ns1.nsmservices.co.uk
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:spf1.emailsecurity.app include:spf.stackmail.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1;p=quarantine;sp=quarantine;adkim=r;aspf=r;pct=100;rf=afrf;ri=86400;rua=mailto:[email protected];ruf=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: quarantine
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- google-site-verification=ua430Bu_nk9C1s310JY9qojgoAxYnALrjq2t8OlqcSg
- SPFv=spf1 include:spf.protection.outlook.com include:spf1.emailsecurity.app include:spf.stackmail.com -all
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