sysmatics.de

Valid Email Server
Domain Lookup › sysmatics.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
sysmatics.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-19 21:04:39 UTC · ↺ Refresh

MX Hostnames

  • mx.mbxspace.de

MX Priorities

  • mx.mbxspace.de: 0

A / AAAA Records

No A/AAAA records found.

Mail Server IPs

  • 87.138.196.76 ↩ mx.mbxspace.de

SOA Record

Raw SOA ns1.core-networks.de hostmaster.core-networks.de 2024092456 28800 7200 604800 1800
Primary NS (mname)
ns1.core-networks.de
Admin Email (rname)
hostmaster@core-networks.de
Serial
2024092456
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

ns1.core-networks.de
ns2.core-networks.eu
ns3.core-networks.com

SPF Record

✓ Soft Fail (~all)
v=spf1 a:mx.mbxspace.de ip4:87.138.196.76 ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine; pct=100
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)

DKIM Selectors

✗ None detected

No 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
  • DMARCv=DMARC1; p=quarantine; ruf=mailto:[email protected]; pct=20; adkim=r; aspf=r
  • SPFv=spf1 a:mx.mbxspace.de ip4:87.138.196.76 ~all
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