Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
csu-diedorf.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-27 04:28:52 UTC · ↺ Refresh
MX Hostnames
- mail-gsm.de
MX Priorities
- mail-gsm.de: 10
A / AAAA Records
- 87.98.244.107 ↩ kundenserver1.gareiss.de
Mail Server IPs
- 178.33.33.33 ↩ mail-gsm.de
SOA Record
Raw SOA
nsa1.schlundtech.de andy1780.gmx.net 2024121900 43200 7200 1209600 86400
Primary NS (mname)
nsa1.schlundtech.de
Admin Email (rname)
andy1780@gmx.net
Serial
2024121900
Refresh
43200s
Retry
7200s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
nsc1.schlundtech.de
nsb1.schlundtech.de
nsa1.schlundtech.de
nsd1.schlundtech.de
SPF Record
✓ Soft Fail (~all)
v=spf1 +a +mx ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate 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 ~all
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