imtek.de

Valid Email Server
Domain Lookup › imtek.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
imtek.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-21 04:26:21 UTC · ↺ Refresh

MX Hostnames

  • b1421.mx.srv.dfn.de
  • c1421.mx.srv.dfn.de
  • a1421.mx.srv.dfn.de

MX Priorities

  • c1421.mx.srv.dfn.de: 1000
  • b1421.mx.srv.dfn.de: 1000
  • a1421.mx.srv.dfn.de: 1000

A / AAAA Records

  • 132.230.103.47 (no PTR)

Mail Server IPs

  • 194.95.238.79 ↩ c1421.mx.srv.dfn.de
  • 2001:638:d:c303:acdc:1979:2:2f ↩ c1421.mx.srv.dfn.de
  • 194.95.234.79 ↩ b1421.mx.srv.dfn.de
  • 2001:638:d:c302:acdc:1979:2:2f ↩ b1421.mx.srv.dfn.de
  • 194.95.232.79 ↩ a1421.mx.srv.dfn.de
  • 2001:638:d:c301:acdc:1979:2:2f ↩ a1421.mx.srv.dfn.de

SOA Record

Raw SOA dhcp.fun.uni-freiburg.de hostmaster.rz.uni-freiburg.de 29 10800 3600 2419200 900
Primary NS (mname)
dhcp.fun.uni-freiburg.de
Admin Email (rname)
hostmaster@rz.uni-freiburg.de
Serial
29
Refresh
10800s
Retry
3600s
Expire
2419200s
Minimum TTL
900s

Nameservers (NS)

dns0.fun.uni-freiburg.de
dns1.belwue.de
dns5.belwue.de
dns3.belwue.de
dns1.fun.uni-freiburg.de

SPF Record

✓ Soft Fail (~all)
v=spf1redirect=_spf.uni-freiburg.de
📊 DNS lookups: 0/10

DMARC Record

✗ Missing

No 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=spf1redirect=_spf.uni-freiburg.de
Full email verification for imtek.de

Run SMTP check, SPF/DKIM/DMARC and catch-all detection.

SPF / DKIM / DMARC Get 1,000 Free Credits