wsi.tum.de

Valid Email Server
Domain Lookup › wsi.tum.de

Domain Overview

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

Checked via [email protected] · 2026-04-02 04:14:10 UTC · ↺ Refresh

MX Hostnames

  • postrelay1.lrz.de
  • postrelay2.lrz.de

MX Priorities

  • postrelay2.lrz.de: 100
  • postrelay1.lrz.de: 100

A / AAAA Records

  • 10.157.168.1 (no PTR)
  • 2001:4ca0:2402:2933::168:1 ↩ wsi.tum.de
  • 2001:4ca0:2402:110:2d3d:e4c:f572:a730
  • 2001:4ca0:2402:2933:e2b0:4ac2:20ec:31f1
  • 2001:4ca0:2402:2933:ddd3:95ae:2ed2:cf99

Mail Server IPs

  • 129.187.255.161 ↩ postrelay2b.lrz.de
  • 129.187.254.159 ↩ postrelay2a.lrz.de
  • 2001:4ca0::103:0:25:1:2 ↩ postrelay2a.lrz.de
  • 2001:4ca0::103:0:0:81bb:ffa1 ↩ postrelay2b.lrz.de
  • 129.187.254.158 ↩ postrelay1a.lrz.de
  • 129.187.255.160 ↩ postrelay1b.lrz.de
  • 2001:4ca0::103:0:25:1:1 ↩ postrelay1a.lrz.de
  • 2001:4ca0::103:0:0:81bb:ffa0 ↩ postrelay1.lrz.de

SOA Record

Raw SOA dns1.lrz.de hostmaster.lrz.de 2026040208 21600 1800 3600000 86400
Primary NS (mname)
dns1.lrz.de
Admin Email (rname)
hostmaster@lrz.de
Serial
2026040208
Refresh
21600s
Retry
1800s
Expire
3600000s
Minimum TTL
86400s

Nameservers (NS)

dns2.lrz.de
dns3.lrz.de
dns1.lrz.de

SPF Record

✓ Strict (-all)
v=spf1 include:_spf.mail.lrz.de -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

DKIM Selectors

✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: selector1

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

1 record
  • SPFv=spf1 include:_spf.mail.lrz.de -all
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