Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
tender-online.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-20 04:18:39 UTC · ↺ Refresh
MX Hostnames
- koblenz-net.de
MX Priorities
- koblenz-net.de: 10
A / AAAA Records
- 195.201.228.146 ↩ he5.horn-internet.de
Mail Server IPs
- 195.201.228.146 ↩ he5.horn-internet.de
SOA Record
Raw SOA
hydrogen.ns.hetzner.com dns.hetzner.com 2026021200 86400 10800 3600000 3600
Primary NS (mname)
hydrogen.ns.hetzner.com
Admin Email (rname)
dns@hetzner.com
Serial
2026021200
Refresh
86400s
Retry
10800s
Expire
3600000s
Minimum TTL
3600s
Nameservers (NS)
helium.ns.hetzner.de
hydrogen.ns.hetzner.com
oxygen.ns.hetzner.com
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:195.201.228.146 ip4:213.239.214.7 ip4:91.99.183.105 ip6:2a01:4f8:a0:80e9::2 ~all
📊 DNS lookups: 0/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 1 found
default._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: default
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 ip4:195.201.228.146 ip4:213.239.214.7 ip4:91.99.183.105 ip6:2a01:4f8:a0:80e9::2 ~all
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