Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
guentax.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-31 06:12:48 UTC · ↺ Refresh
MX Hostnames
- guenberlin.dyndns.org
MX Priorities
- guenberlin.dyndns.org: 5
A / AAAA Records
- 162.55.186.22 ↩ awsdev21.steinbeis-smi.de
Mail Server IPs
- 91.99.197.138 ↩ static.138.197.99.91.clients.your-server.de
SOA Record
Raw SOA
dns200.anycast.me tech.ovh.net 2026031900 86400 3600 3600000 300
Primary NS (mname)
dns200.anycast.me
Admin Email (rname)
tech@ovh.net
Serial
2026031900
Refresh
86400s
Retry
3600s
Expire
3600000s
Minimum TTL
300s
Nameservers (NS)
ns200.anycast.me
dns200.anycast.me
SPF Record
✓ Soft Fail (~all)
v=spf1 mx a:zaxncsrv71.zax.pm ip4:195.201.36.85 ip4:193.31.26.115 ip4:91.99.197.138 ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✓ 1 found
mail._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: mail
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 mx a:zaxncsrv71.zax.pm ip4:195.201.36.85 ip4:193.31.26.115 ip4:91.99.197.138 ~all
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