Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
roter-kaeltetechnik.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-21 11:17:29 UTC · ↺ Refresh
MX Hostnames
- relay.rzone.de
- mail.roter-kaeltetechnik.de
MX Priorities
- relay.rzone.de: 200
- mail.roter-kaeltetechnik.de: 10
A / AAAA Records
- 81.169.145.165 ↩ wa5.rzone.de
- 2a01:238:20a:202:1165:: ↩ wa5.rzone.de
Mail Server IPs
- 81.169.145.96 ↩ relay.rzone.de
- 81.14.239.109 ↩ a81-14-239-109.net-htp.de
SOA Record
Raw SOA
shades19.rzone.de hostmaster.strato-rz.de 2020050729 86400 7200 604800 300
Primary NS (mname)
shades19.rzone.de
Admin Email (rname)
hostmaster@strato-rz.de
Serial
2020050729
Refresh
86400s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
docks14.rzone.de
shades19.rzone.de
SPF Record
✗ MissingNo SPF record — domain is unprotected against spoofing.
⚠ No SPF record found. Email servers cannot verify authorized senders.
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=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
3 records- MS=AC878A364A80883AB6E014EE2BB592EAE8E9F74A
- brevo-code:71a71cd877647820ee8c7cc8669df171
- apple-domain-verification=uCMx0aSppwtsTBwr
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