Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
dehne-druck.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-25 02:56:45 UTC · ↺ Refresh
MX Hostnames
- mail.singular.de
- mx.singular.de
MX Priorities
- mail.singular.de: 10
- mx.singular.de: 20
A / AAAA Records
- 138.201.175.114 ↩ gaia.singular.de
- 2a01:4f8:c17:c82f::1 ↩ gaia.singular.de
Mail Server IPs
- 136.243.155.135 ↩ calypso.singular.de
- 2a01:4f8:171:1e05::2 ↩ calypso.singular.de
- 116.203.13.210 ↩ mx.singular.de
- 2a01:4f8:1c0c:82eb::2 ↩ mx.singular.de
SOA Record
Raw SOA
hydrogen.ns.hetzner.com dns.hetzner.com 2025121900 86400 10800 3600000 3600
Primary NS (mname)
hydrogen.ns.hetzner.com
Admin Email (rname)
dns@hetzner.com
Serial
2025121900
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
✓ Soft Fail (~all)
v=spf1 mx include:amazonses.com include:spf.sendinblue.com ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=0; adkim=r; aspf=r; rf=afrf; sp=none
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none
DKIM Selectors
✓ 1 found
s1._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: s1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 mx include:amazonses.com include:spf.sendinblue.com ~all
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