Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
systemagmbh.de
Yes
✓ Yes
Proofpoint
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-30 19:43:00 UTC · ↺ Refresh
MX Hostnames
- mxb-00593801.gslb.pphosted.com
- mxa-00593801.gslb.pphosted.com
MX Priorities
- mxa-00593801.gslb.pphosted.com: 10
- mxb-00593801.gslb.pphosted.com: 10
A / AAAA Records
- 217.18.181.20 ↩ mx0.systemagmbh.de
Mail Server IPs
- 205.220.177.99 ↩ mx0b-00593801.pphosted.com
- 205.220.165.99 ↩ mx0a-00593801.pphosted.com
SOA Record
Raw SOA
ns0.isd-internet.de domain.isd-internet.de 2026031001 28800 3600 604800 3600
Primary NS (mname)
ns0.isd-internet.de
Admin Email (rname)
domain@isd-internet.de
Serial
2026031001
Refresh
28800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns20.isd-internet.de
ns0.isd-internet.de
SPF Record
✓ Strict (-all)
v=spf1 a mx ip4:205.220.165.99 ip4:205.220.177.99 ip4:217.18.190.4 ip4:217.18.190.5 ip4:217.18.191.31 ip4:217.18.191.36 -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
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
3 records- SPFv=spf1 a mx ip4:205.220.165.99 ip4:205.220.177.99 ip4:217.18.190.4 ip4:217.18.190.5 ip4:217.18.191.31 ip4:217.18.191.36 -all
- MS=ms27937787
- logmein-verification-code=aac67aca-5539-487b-a98a-3fbd6e8a9506
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