urz.uni-heidelberg.de

Valid Email Server
Domain Lookup › urz.uni-heidelberg.de

Domain Overview

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

Checked via [email protected] · 2026-03-27 13:05:24 UTC · ↺ Refresh

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MX Hostnames

  • relay3.uni-heidelberg.de
  • relay2.uni-heidelberg.de
  • relay.uni-heidelberg.de

MX Priorities

  • relay2.uni-heidelberg.de: 10
  • relay.uni-heidelberg.de: 10
  • relay3.uni-heidelberg.de: 10

A / AAAA Records

  • 129.206.13.71 ↩ lb1-ocp-west.urz.uni-heidelberg.de

Mail Server IPs

  • 129.206.119.212 ↩ relay2.uni-heidelberg.de
  • 129.206.100.212 ↩ relay.uni-heidelberg.de
  • 129.206.100.213 ↩ relay3.uni-heidelberg.de

SOA Record

Raw SOA dns.uni-heidelberg.de net-bugs.urz.uni-heidelberg.de 202603271 21600 1800 604800 3600
Primary NS (mname)
dns.uni-heidelberg.de
Admin Email (rname)
net-bugs@urz.uni-heidelberg.de
Serial
202603271
Refresh
21600s
Retry
1800s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

dns3.belwue.de
dns2.uni-heidelberg.de
dns.uni-heidelberg.de
dns1.belwue.de

SPF Record

✓ Strict (-all)
v=spf1 ip4:129.206.100.212 ip4:129.206.119.212 ip4:129.206.100.213 mx -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

✗ None detected

No DKIM records found for common selectors — your provider may use a custom selector name.

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

All TXT Records

4 records
  • apple-domain-verification=0blpTX16kgmg8X5J
  • SPFv=spf1 ip4:129.206.100.212 ip4:129.206.119.212 ip4:129.206.100.213 mx -all
  • D-TRUST=IEJ2SH27RGZYJ9UTI22P7UT
  • _telesec-domain-validation=344319_2026-01-10_BswvEYJtvYWmwyRpIlHpEEuPLJ2Eib102ZbOg0uCOz7wJ588aC
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