Domain Overview
DNS: ✓ 3h ago
Checker: ✓ 3h ago
zenger-gmbh.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-05-23 06:08:56 UTC · ↺ Refresh
MX Hostnames
- mail.zenger-gmbh.de
MX Priorities
- mail.zenger-gmbh.de: 10
A / AAAA Records
- 31.220.121.13 ↩ r12364.agenturserver.it
Mail Server IPs
- 78.35.9.210 ↩ mail.zenger-gmbh.de
SOA Record
Raw SOA
ns1057.ui-dns.com hostmaster.kundenserver.de 2016110477 28800 7200 604800 300
Primary NS (mname)
ns1057.ui-dns.com
Admin Email (rname)
hostmaster@kundenserver.de
Serial
2016110477
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
ns1057.ui-dns.de
ns1057.ui-dns.org
ns1057.ui-dns.biz
ns1057.ui-dns.com
SPF Record
✓ Strict (-all)
v=spf1 a mx ip4:78.35.9.210 ip4:78.35.9.211 ip4:78.35.9.212 ip4:78.35.9.213 include:_spf-eu.ionos.com include:agenturserver.de include:spf.protection.outlook.com -all
📊 DNS lookups: 5/10
✓ 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 ip4:78.35.9.210 ip4:78.35.9.211 ip4:78.35.9.212 ip4:78.35.9.213 include:_spf-eu.ionos.com include:agenturserver.de include:spf.protection.outlook.com -all
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