Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
schoolwork.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-26 10:54:50 UTC · ↺ Refresh
MX Hostnames
- schoolwork.de
MX Priorities
- schoolwork.de: 10
A / AAAA Records
- 82.165.207.21 ↩ mail.0fu.de
Mail Server IPs
- 82.165.207.21 ↩ mail.0fu.de
SOA Record
Raw SOA
ns.inwx.de hostmaster.inwx.de 2023092503 10800 3600 604800 3600
Primary NS (mname)
ns.inwx.de
Admin Email (rname)
hostmaster@inwx.de
Serial
2023092503
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns3.inwx.de
ns2.inwx.de
ns.inwx.de
SPF Record
✓ Strict (-all)
v=spf1 mx -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✓ 1 found
default._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: default
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 mx -all
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