sw-bs.de

Valid Email Server
Domain Lookup › sw-bs.de

Domain Overview

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

Checked via [email protected] · 2026-03-19 18:21:04 UTC · ↺ Refresh

MX Hostnames

  • mx1.swbs.etc.tu-bs.de
  • mx2.svc.stw-on.network

MX Priorities

  • mx1.swbs.etc.tu-bs.de: 20
  • mx2.svc.stw-on.network: 10

A / AAAA Records

  • 134.169.86.78 ↩ proxy.swbs.etc.tu-bs.de

Mail Server IPs

  • 134.169.86.126 ↩ mx1.swbs.etc.tu-bs.de
  • 91.26.189.125 ↩ mx2.svc.stw-on.network

SOA Record

Raw SOA hydrogen.ns.hetzner.com dns.hetzner.com 2025100901 86400 10800 3600000 3600
Primary NS (mname)
hydrogen.ns.hetzner.com
Admin Email (rname)
dns@hetzner.com
Serial
2025100901
Refresh
86400s
Retry
10800s
Expire
3600000s
Minimum TTL
3600s

Nameservers (NS)

hydrogen.ns.hetzner.com
oxygen.ns.hetzner.com
helium.ns.hetzner.de

SPF Record

✓ Strict (-all)
v=spf1 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

1 record
  • SPFv=spf1 mx -all
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