Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
xdfl.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-25 11:12:55 UTC · ↺ Refresh
MX Hostnames
- mailhub05.skytron.de
- mailhub01.skytron.de
- mailhub04.skytron.de
- mailhub03.skytron.de
- mailhub02.skytron.de
MX Priorities
- mailhub05.skytron.de: 15
- mailhub02.skytron.de: 12
- mailhub03.skytron.de: 13
- mailhub01.skytron.de: 11
- mailhub04.skytron.de: 14
A / AAAA Records
- 213.146.230.108 ↩ 213-146-230-108.ptr.skytron.de
Mail Server IPs
- 213.146.243.135 ↩ mailhub05.skytron.de
- 213.146.243.132 ↩ mailhub02.skytron.de
- 213.146.243.133 ↩ mailhub03.skytron.de
- 213.146.230.9 ↩ mailhub01.skytron.de
- 213.146.243.134 ↩ mailhub04.skytron.de
SOA Record
Raw SOA
ns01.d-n-s-server.de server-ns01.skytron.de 2025052800 10000 3600 1209600 86400
Primary NS (mname)
ns01.d-n-s-server.de
Admin Email (rname)
server-ns01@skytron.de
Serial
2025052800
Refresh
10000s
Retry
3600s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns02.d-n-s-server.de
ns01.d-n-s-server.de
SPF Record
✓ Strict (-all)
v=spf1 mx a:mail01.skytron.de -all
📊 DNS lookups: 2/10
✓ 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
1 record- SPFv=spf1 mx a:mail01.skytron.de -all
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