Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
david-schulte.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-04 04:35:34 UTC · ↺ Refresh
MX Hostnames
- mail.david-schulte.de
MX Priorities
- mail.david-schulte.de: 10
A / AAAA Records
- 217.160.40.40 ↩ david-schulte.de
- 2001:8d8:1800:8100::1 ↩ david-schulte.de
Mail Server IPs
- 217.160.40.40 ↩ david-schulte.de
- 2001:8d8:1800:8100::1 ↩ david-schulte.de
SOA Record
Raw SOA
ns1016.ui-dns.org hostmaster.1und1.com 2017060142 28800 7200 604800 600
Primary NS (mname)
ns1016.ui-dns.org
Admin Email (rname)
hostmaster@1und1.com
Serial
2017060142
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns1074.ui-dns.com
ns1016.ui-dns.org
ns1035.ui-dns.biz
ns1123.ui-dns.de
SPF Record
✓ Strict (-all)
v=spf1 +a +mx +a:david-schulte.de -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; sp=reject
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
↳ Subdomain policy: reject
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 +a +mx +a:david-schulte.de -all
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