Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
friedrich-hecker-schule.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-28 03:05:54 UTC · ↺ Refresh
MX Hostnames
- mail.schulen-rnk.de
MX Priorities
- mail.schulen-rnk.de: 10
A / AAAA Records
- 78.47.54.21 ↩ dedi3776.your-server.de
- 2a01:4f8:d0a:51b3::2 ↩ dedi3776.your-server.de
Mail Server IPs
- 141.19.232.4 ↩ mail.schulen-rnk.de
SOA Record
Raw SOA
pns.dtag.de dns.telekom.de 2025111900 10800 3600 2419200 3600
Primary NS (mname)
pns.dtag.de
Admin Email (rname)
dns@telekom.de
Serial
2025111900
Refresh
10800s
Retry
3600s
Expire
2419200s
Minimum TTL
3600s
Nameservers (NS)
pns.dtag.de
ns1.telekom.net
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:141.19.232.4 a:mail.your-server.de include:schulen-rnk.de ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement
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
2 records- MS=16BCA367787D53A0EFFF27C584A312CC73A18314
- SPFv=spf1 ip4:141.19.232.4 a:mail.your-server.de include:schulen-rnk.de ~all
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