Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
mathias-service.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-25 04:16:36 UTC · ↺ Refresh
MX Hostnames
- fw01.tkrz.de
- mailgwmsp.grv1.tkrz.de
MX Priorities
- fw01.tkrz.de: 50
- mailgwmsp.grv1.tkrz.de: 10
A / AAAA Records
- 185.124.232.49 ↩ vm39.cows-server.de
Mail Server IPs
- 185.64.168.33 ↩ fw01.tkrz.de
- 2a02:f08:300::2 ↩ fw01.tkrz.de
- 45.82.125.66 ↩ mailgwmsp.grv1.tkrz.de
- 2a02:f08:302:a001::2 ↩ mailgwmsp.grv1.tkrz.de
SOA Record
Raw SOA
nsa6.schlundtech.de do-not-reply.mathias-service.de 2023061202 43200 7200 1209600 86400
Primary NS (mname)
nsa6.schlundtech.de
Admin Email (rname)
do-not-reply@mathias-service.de
Serial
2023061202
Refresh
43200s
Retry
7200s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
nsd6.schlundtech.de
nsb6.schlundtech.de
nsa6.schlundtech.de
nsc6.schlundtech.de
SPF Record
✓ Strict (-all)
v=spf1 a mx a:vs9-host01.scom-systemhaus.de a:fw01.tkrz.de a:mailgwmsp.grv1.tkrz.de ip6:2a02:f08:a:4021::1 ip6:2a02:f08:302:a001::2 ip4:178.255.137.73 ip4:91.190.225.29 ip4:45.82.125.66 ip4:45.82.125.200 -all
📊 DNS lookups: 6/10
✓ 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
1 record- SPFv=spf1 a mx a:vs9-host01.scom-systemhaus.de a:fw01.tkrz.de a:mailgwmsp.grv1.tkrz.de ip6:2a02:f08:a:4021::1 ip6:2a02:f08:302:a001::2 ip4:178.255.137.73 ip4:91.190.225.29 ip4:45.82.125.66 ip4:45.82.125.200 -all
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