Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
dzb.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-25 03:52:16 UTC · ↺ Refresh
MX Hostnames
- mail.dzb.de
MX Priorities
- mail.dzb.de: 10
A / AAAA Records
- 136.243.74.239 ↩ hetzner-1.dzblesen.de
Mail Server IPs
- 195.37.234.250 ↩ mail.dzblesen.de
SOA Record
Raw SOA
ns1.first-ns.de dns.hetzner.com 2026032007 86400 10800 3600000 86400
Primary NS (mname)
ns1.first-ns.de
Admin Email (rname)
dns@hetzner.com
Serial
2026032007
Refresh
86400s
Retry
10800s
Expire
3600000s
Minimum TTL
86400s
Nameservers (NS)
ns1.first-ns.de
robotns2.second-ns.de
robotns3.second-ns.com
SPF Record
✓ Strict (-all)
v=spf1 mx ip4:195.37.234.250 a:dzb.de -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; sp=none; fo=1; rua=mailto:[email protected]; ruf=mailto:[email protected]; ri=604800;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none
DKIM Selectors
✓ 1 found
dkim._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: dkim
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- SPFv=spf1 mx ip4:195.37.234.250 a:dzb.de -all
- google-site-verification=Rv12xN_tB3guNWIpdjv1DO9tzi84q_N8uyDLyDRYWZM
Full email verification for dzb.de
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