Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
zsl-bw.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-30 00:45:09 UTC · ↺ Refresh
MX Hostnames
- mx01.seminar-bw.de
- mx02.seminar-bw.de
- mail.zsl-bw.de
MX Priorities
- mx01.seminar-bw.de: 10
- mx02.seminar-bw.de: 10
- mail.zsl-bw.de: 100
A / AAAA Records
- 195.82.81.36 (no PTR)
Mail Server IPs
- 164.30.16.127 ↩ mx01.seminar-bw.de
- 164.30.21.8 ↩ mx02.seminar-bw.de
- 195.82.81.36 (no PTR)
SOA Record
Raw SOA
hydrogen.ns.hetzner.com dns.hetzner.com 2026021800 86400 10800 3600000 3600
Primary NS (mname)
hydrogen.ns.hetzner.com
Admin Email (rname)
dns@hetzner.com
Serial
2026021800
Refresh
86400s
Retry
10800s
Expire
3600000s
Minimum TTL
3600s
Nameservers (NS)
oxygen.ns.hetzner.com
helium.ns.hetzner.de
hydrogen.ns.hetzner.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:_spf.seminar-bw.de ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]; ruf=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 1 found
mail._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: mail
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
7 records- 199828c594fb03557a56d5971c3a6161166a6c21f02d98423434907f44b442f
- brevo-code:675f08a2fd12239d5c3e34f5f1ec9650
- brevo-code:75a0d2922d8a4b1a20b1b49a0ae52a84
- cceabb9e11f89c533850d54c85b4cab7c12599c2150148198a6e2928fe75c16
- cf87ffad13cc9a3e01af41c6254399f46e31e24f174659cbf1d38992119a951
- google-site-verification=XrWOZS-hjFOMa2TAaemX01hD4RdInkv2v2FBOucyOMU
- SPFv=spf1 include:_spf.seminar-bw.de ~all
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