Live data — DNS records and disposable check were just fetched and saved.
Domain Overview
DNS: ⚡ live
Checker: ⚡ live
ihwb.tu-darmstadt.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-28 13:08:08 UTC · ↺ Refresh
MX Hostnames
- b2681.mx.srv.dfn.de
- a2681.mx.srv.dfn.de
- c2681.mx.srv.dfn.de
MX Priorities
- b2681.mx.srv.dfn.de: 10
- c2681.mx.srv.dfn.de: 10
- a2681.mx.srv.dfn.de: 10
A / AAAA Records
No A/AAAA records found.
Mail Server IPs
- 194.95.235.42 ↩ b2681.mx.srv.dfn.de
- 2001:638:d:c302:acdc:1979:2:e2 ↩ b2681.mx.srv.dfn.de
- 194.95.239.42 ↩ c2681.mx.srv.dfn.de
- 2001:638:d:c303:acdc:1979:2:e2 ↩ c2681.mx.srv.dfn.de
- 194.95.233.42 ↩ a2681.mx.srv.dfn.de
- 2001:638:d:c301:acdc:1979:2:e2 ↩ a2681.mx.srv.dfn.de
SOA Record
No SOA record found.
Nameservers (NS)
No nameservers found.
SPF Record
✓ Strict (-all)
v=spf1 include:_spf.tu-darmstadt.de -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✓ 1 found
s1._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: s1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 include:_spf.tu-darmstadt.de -all
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