Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
smartbizbox.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-14 03:44:11 UTC · ↺ Refresh
MX Hostnames
- webnode01-mx.zxcs.nl
MX Priorities
- webnode01-mx.zxcs.nl: 10
A / AAAA Records
- 3.73.27.108 ↩ ec2-3-73-27-108.eu-central-1.compute.amazonaws.com
- 3.125.172.46 ↩ ec2-3-125-172-46.eu-central-1.compute.amazonaws.com
Mail Server IPs
- 185.104.30.236 ↩ webnode01.zxcs.nl
- 2a06:2ec0:1::50 ↩ webnode01.zxcs.nl
SOA Record
Raw SOA
ns.zxcs.nl hostmaster.smartbizbox.com 2021010100 600 3600 1209600 86400
Primary NS (mname)
ns.zxcs.nl
Admin Email (rname)
hostmaster@smartbizbox.com
Serial
2021010100
Refresh
600s
Retry
3600s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns.zxcs.be
ns.zxcs.eu
ns.zxcs.nl
SPF Record
✓ Strict (-all)
v=spf1 a include:filter-out.zxcs.nl -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; sp=none; adkim=s; aspf=r;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Strict
⚠ No aggregate reports (rua= not set)
↳ Subdomain policy: none
DKIM Selectors
✗ None detectedNo 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
2 records- mailconf=http://autoconfig.smartbizbox.com/mail/config-v1.1.xml
- SPFv=spf1 a include:filter-out.zxcs.nl -all
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