Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
schulkolleg.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-31 14:11:02 UTC · ↺ Refresh
MX Hostnames
- mail.schulkolleg.de
MX Priorities
- mail.schulkolleg.de: 10
A / AAAA Records
- 142.132.179.44 ↩ redirects.mera.websites.supseven.at
Mail Server IPs
- 78.46.177.209 ↩ dedi4630.your-server.de
- 2a01:4f8:d0a:6277::2 ↩ dedi4630.your-server.de
SOA Record
Raw SOA
ns1.massresponse.com support.cyberservice.net 2024103000 3600 900 604800 1200
Primary NS (mname)
ns1.massresponse.com
Admin Email (rname)
support@cyberservice.net
Serial
2024103000
Refresh
3600s
Retry
900s
Expire
604800s
Minimum TTL
1200s
Nameservers (NS)
ns3.massresponse.com
ns1.massresponse.com
ns4.massresponse.com
ns2.massresponse.com
SPF Record
✓ Soft Fail (~all)
v=spf1 a mx a:mail.dedi4630.your-server.de ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✓ 1 found
default._domainkey
✓ Public key: 392 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 a mx a:mail.dedi4630.your-server.de ~all
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