Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
uni-heidelberg.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-28 12:12:11 UTC · ↺ Refresh
MX Hostnames
- relay3.uni-heidelberg.de
- relay2.uni-heidelberg.de
- relay.uni-heidelberg.de
MX Priorities
- relay.uni-heidelberg.de: 10
- relay2.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
- 129.206.100.212 ↩ relay.uni-heidelberg.de
- 129.206.119.212 ↩ relay2.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 202603160 21600 1800 2419200 3600
Primary NS (mname)
dns.uni-heidelberg.de
Admin Email (rname)
net-bugs@urz.uni-heidelberg.de
Serial
202603160
Refresh
21600s
Retry
1800s
Expire
2419200s
Minimum TTL
3600s
Nameservers (NS)
dns1.belwue.de
dns2.uni-heidelberg.de
dns.uni-heidelberg.de
dns3.belwue.de
SPF Record
✓ Strict (-all)
v=spf1 ip4:129.206.100.212 ip4:129.206.119.212 ip4:129.206.100.213 include:spf.protection.outlook.com mx -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; adkim=r; aspf=r; rua=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 1 found
s1._domainkey
✓ Public key: 392 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
8 records- apple-domain-verification=rTpijAWdQfNd3V8I
- HARICA-lOJzgBA3AntUs6PwzHj
- 1 baa827de-94e8-11d1-9294-0006292e8152 Readonly /.../uni-heidelberg.de/dcesrv2_ch 13228860-ad1b-11d1-9b86-0006292e7ae1 dcesrv2.urz.uni-heidelberg.de
- cloudflare-verify.uni-heidelberg.de 392311672-383734000
- 1 baa827de-94e8-11d1-9294-0006292e8152 Master /.../uni-heidelberg.de/dcesrv1_ch ba2928f8-94e8-11d1-9294-0006292e8152 dcesrv1.urz.uni-heidelberg.de
- google-site-verification=HZuDm00bKKT2fU_i2mLun2aw8IUNa64kg9ilP3b8-AQ
- cisco-ci-domain-verification=30f96646ddb8814399410d5700143249881b4eb5948ddcc31e894591877b7f84
- SPFv=spf1 ip4:129.206.100.212 ip4:129.206.119.212 ip4:129.206.100.213 include:spf.protection.outlook.com mx -all
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