Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
dhbw-loerrach.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-03 16:24:31 UTC · ↺ Refresh
MX Hostnames
- mx3.belwue.de
- mx4.belwue.de
- mx2.belwue.de
- mx1.belwue.de
MX Priorities
- mx3.belwue.de: 10
- mx1.belwue.de: 10
- mx4.belwue.de: 10
- mx2.belwue.de: 10
A / AAAA Records
- 193.196.0.202 (no PTR)
- 2001:7c0:1b00:e::a (no PTR)
Mail Server IPs
- 129.143.76.3 ↩ mail-in03.belwue.de
- 2001:7c0::76:0:0:0:3 ↩ mail-in03.belwue.de
- 129.143.76.1 ↩ mail-in01.belwue.de
- 129.143.76.2 ↩ mail-in02.belwue.de
- 2001:7c0::76:0:0:0:2 ↩ mail-in02.belwue.de
- 2001:7c0::76:0:0:0:1 ↩ mail-in01.belwue.de
- 129.143.76.4 ↩ mail-in04.belwue.de
- 2001:7c0::76:0:0:0:4 ↩ mail-in04.belwue.de
SOA Record
Raw SOA
sun1.dhbw-loerrach.de helpdesk.dhbw-loerrach.de 2025120301 21600 1800 2419200 86400
Primary NS (mname)
sun1.dhbw-loerrach.de
Admin Email (rname)
helpdesk@dhbw-loerrach.de
Serial
2025120301
Refresh
21600s
Retry
1800s
Expire
2419200s
Minimum TTL
86400s
Nameservers (NS)
dns5.belwue.de
dns3.belwue.de
dns1.belwue.de
SPF Record
✓ Strict (-all)
v=spf1 include:_spf.belwue.de include:spf.hornetsecurity.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;sp=reject;fo=1:s:d;rua=mailto:[email protected];ruf=mailto:[email protected];adkim=s;aspf=s
✓ Reject — strongest protection
📋 SPF alignment: Strict
· DKIM alignment: Strict
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject
DKIM Selectors
✗ None detectedNo 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
1 record- SPFv=spf1 include:_spf.belwue.de include:spf.hornetsecurity.com -all
Full email verification for dhbw-loerrach.de
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