Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
as-gt.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-04-04 06:54:11 UTC · ↺ Refresh
MX Hostnames
- mx.nrw.schule
MX Priorities
- mx.nrw.schule: 10
A / AAAA Records
- 85.13.157.242 ↩ dd40738.kasserver.com
Mail Server IPs
- 194.77.248.232 ↩ mx.nrw.schule
SOA Record
Raw SOA
ns5.kasserver.com hostmaster.kasserver.com 2510291029 28800 7200 1209600 7200
Primary NS (mname)
ns5.kasserver.com
Admin Email (rname)
hostmaster@kasserver.com
Serial
2510291029
Refresh
28800s
Retry
7200s
Expire
1209600s
Minimum TTL
7200s
Nameservers (NS)
a-dns-service.de
ns5.kasserver.com
ns3.kas-dns-server.de
ns6.kasserver.com
SPF Record
✓ Soft Fail (~all)
v=spf1 redirect=_spf.ext.nrw.schule
📊 DNS lookups: 1/10
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
1 record- SPFv=spf1 redirect=_spf.ext.nrw.schule
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