Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
haefft-media.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-25 18:28:05 UTC · ↺ Refresh
MX Hostnames
- mx3.werk21system.de
- mx4.werk21system.de
MX Priorities
- mx4.werk21system.de: 10
- mx3.werk21system.de: 15
A / AAAA Records
- 194.97.157.251 ↩ www.schulmedia.de
Mail Server IPs
- 78.46.128.86 ↩ mx4.werk21system.de
- 91.216.245.166 ↩ mx3.werk21system.de
SOA Record
Raw SOA
ns.checon.net hostmaster.checon.de 2016062901 28800 3600 864000 86400
Primary NS (mname)
ns.checon.net
Admin Email (rname)
hostmaster@checon.de
Serial
2016062901
Refresh
28800s
Retry
3600s
Expire
864000s
Minimum TTL
86400s
Nameservers (NS)
ns6.checon.de
ns.checon.net
b.ns14.net
SPF Record
✗ MissingNo SPF record — domain is unprotected against spoofing.
⚠ No SPF record found. Email servers cannot verify authorized senders.
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✗ None detectedNo DKIM records found for common selectors — your provider may use a custom selector name.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
No TXT records found.
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