Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
dev-nu11.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-04 05:10:16 UTC · ↺ Refresh
MX Hostnames
- box.dev-nu11.de
MX Priorities
- box.dev-nu11.de: 10
A / AAAA Records
- 176.9.82.135 ↩ box.dev-nu11.de
- 2a01:4f8:151:2081:101::1a ↩ box.dev-nu11.de
Mail Server IPs
- 176.9.82.135 ↩ box.dev-nu11.de
- 2a01:4f8:151:2081:101::1a ↩ box.dev-nu11.de
SOA Record
Raw SOA
root-dns.netcup.net dnsadmin.netcup.net 2021060276 28800 7200 1209600 3600
Primary NS (mname)
root-dns.netcup.net
Admin Email (rname)
dnsadmin@netcup.net
Serial
2021060276
Refresh
28800s
Retry
7200s
Expire
1209600s
Minimum TTL
3600s
Nameservers (NS)
second-dns.netcup.net
third-dns.netcup.net
root-dns.netcup.net
SPF Record
✓ Strict (-all)
v=spf1 mx -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 1 found
mail._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: mail
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 mx -all
Full email verification for dev-nu11.de
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