Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
donnerhacke.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-26 06:48:50 UTC · ↺ Refresh
MX Hostnames
- mailv4.donnerhacke.de
- mailv6.donnerhacke.de
MX Priorities
- mailv4.donnerhacke.de: 6
- mailv6.donnerhacke.de: 4
A / AAAA Records
No A/AAAA records found.
Mail Server IPs
- 217.17.192.67 ↩ excalibur.iks-jena.de
- 2001:4bd8::17 ↩ excalibur.iks-jena.de
SOA Record
Raw SOA
avalon.iks-jena.de hostmaster.iks-jena.de 2026032501 28800 3600 3600000 57600
Primary NS (mname)
avalon.iks-jena.de
Admin Email (rname)
hostmaster@iks-jena.de
Serial
2026032501
Refresh
28800s
Retry
3600s
Expire
3600000s
Minimum TTL
57600s
Nameservers (NS)
avalon.iks-jena.de
broceliande.iks-jena.de
SPF Record
✓ Strict (-all)
v=spf1 a mx include:spf.iks-jena.de include:thur.de -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✓ 13 found
google._domainkey
selector1._domainkey
selector2._domainkey
default._domainkey
mail._domainkey
dkim._domainkey
k1._domainkey
s1._domainkey
s2._domainkey
zoho._domainkey
sendgrid._domainkey
mxvault._domainkey
amazonses._domainkey
✓ DKIM properly configured for selector: google
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- google-site-verification=AZxjqJh3okN3StT2MY6cH_t2TeJAQkMH3BAlzr_QVmA
- SPFv=spf1 a mx include:spf.iks-jena.de include:thur.de -all
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