Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
steinbeisschule-reutlingen.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-21 18:08:54 UTC · ↺ Refresh
MX Hostnames
- mail.steinbeis.schule
MX Priorities
- mail.steinbeis.schule: 10
A / AAAA Records
- 129.143.142.38 (no PTR)
Mail Server IPs
- 129.143.142.36 ↩ mail.steinbeis.schule
SOA Record
Raw SOA
ns7.za-internet.net dnsmaster.za-internet.net 2026021503 28800 7200 604800 300
Primary NS (mname)
ns7.za-internet.net
Admin Email (rname)
dnsmaster@za-internet.net
Serial
2026021503
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
ns8.za-domain.de
ns7.za-internet.net
ns11.zainternet.net
SPF Record
✓ Strict (-all)
v=spf1 ip4:134.103.220.72/32 ip4:129.143.142.36/32 -all
📊 DNS lookups: 0/10
✓ Hard fail (-all) — strict 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
7 records- 0gwt4mf6vc63d8s25npdj0gtnv3xby1f
- sgsfcjbqg45qsss3c63bmfm18tzb6hl7
- Ferdinand-von-Steinbeis-Schule reutlingen, karlstrasse 40, 72764 Reutlingen
- SPFv=spf1 ip4:134.103.220.72/32 ip4:129.143.142.36/32 -all
- apple-domain-verification=zqmdIoPjTXfoRuLw
- adobe-idp-site-verification=49f7d0cd4bc4c86202896879537bada3ad0dea9a55e496716f1b06736e4897f5
- MS=ms64971914
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