Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
cosa-online.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-27 12:40:43 UTC · ↺ Refresh
MX Hostnames
- mail.xtek.de
MX Priorities
- mail.xtek.de: 10
A / AAAA Records
- 80.82.220.160 ↩ vm160.cgn.xtek.host
Mail Server IPs
- 80.82.220.180 ↩ mail.xtek.de
SOA Record
Raw SOA
ns.xtek.de technik.xtek.de 2024091600 28800 7200 604800 86400
Primary NS (mname)
ns.xtek.de
Admin Email (rname)
technik@xtek.de
Serial
2024091600
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
86400s
Nameservers (NS)
b.ns14.net
d.ns14.net
c.ns14.net
ns.xtek.de
SPF Record
✓ Soft Fail (~all)
v=spf1 include:_spf.xtek.host ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;pct=100;rua=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 1 found
mail._domainkey
✓ Public key: 392 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
1 record- SPFv=spf1 include:_spf.xtek.host ~all
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