Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
heidelberg.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-19 15:11:21 UTC · ↺ Refresh
MX Hostnames
- mx6.kvnbw.de
- mx9.kvnbw.de
- mx7.kvnbw.de
- mx8.kvnbw.de
MX Priorities
- mx8.kvnbw.de: 10
- mx6.kvnbw.de: 10
- mx9.kvnbw.de: 10
- mx7.kvnbw.de: 10
A / AAAA Records
- 194.76.38.34 (no PTR)
Mail Server IPs
- 194.59.36.34 ↩ mx8.kvnbw.de
- 194.0.94.48 ↩ mx6.kvnbw.de
- 194.59.36.35 ↩ mx9.kvnbw.de
- 194.0.94.49 ↩ mx7.kvnbw.de
SOA Record
Raw SOA
dns1.belwue.de hostmaster.belwue.de 2025061025 21600 1800 2419200 86400
Primary NS (mname)
dns1.belwue.de
Admin Email (rname)
hostmaster@belwue.de
Serial
2025061025
Refresh
21600s
Retry
1800s
Expire
2419200s
Minimum TTL
86400s
Nameservers (NS)
dns3.belwue.de
dns5.belwue.de
dns.uni-heidelberg.de
dns1.belwue.de
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protect.kvnbw.de include:spf.protection.outlook.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; pct=100; rua=mailto:[email protected]; ruf=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 392 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
10 records- SPFv=spf1 include:spf.protect.kvnbw.de include:spf.protection.outlook.com -all
- adobe-idp-site-verification=b57fe3c9-e605-476d-ae71-1a4c046a4f7a
- Stadt Heidelberg, Postfach 10 55 20, 69045 Heidelberg
- abuseipdb-verification=VcvRrRmx
- apple-domain-verification=vlDGdbHlERfAMLnt
- MS=ms59820156
- MS=D75FD5BBE86951FB0E163928B2D4EBB6A70B041A
- google-site-verification=d5vWAVBbmpC-W0uEoNX7_hXVztsAhi8AIsMJQ_I8F5Y
- google-site-verification=mZtmNWqhdIS2Z2xPYlpd9u8bof2MR9PXf7WAQcNmXqw
- autodesk-domain-verification=XhCFvGn1l9D2sNzk3Cmj
Full email verification for heidelberg.de
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