Domain Overview
DNS: ✓ just now
Checker: ✓ just now
sasbacher.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-09-04 19:06:42 UTC · ↺ Refresh
MX Hostnames
- smtpin.rzone.de
MX Priorities
- smtpin.rzone.de: 5
A / AAAA Records
- 138.201.54.199 ↩ static.199.54.201.138.clients.your-server.de
- 2a01:4f8:172:fc1::2 (no PTR)
Mail Server IPs
- 81.169.145.97 ↩ smtpin.rzone.de
- 2a01:238:20a:202:50f0::1097 ↩ smtpin.rzone.de
SOA Record
Raw SOA
shades18.rzone.de hostmaster.strato-rz.de 2020050772 86400 7200 604800 300
Primary NS (mname)
shades18.rzone.de
Admin Email (rname)
hostmaster@strato-rz.de
Serial
2020050772
Refresh
86400s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
shades18.rzone.de
docks13.rzone.de
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com mx a include:_spf.strato.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
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
2 records- DMARCv=DMARC1; p=none; rua=mailto:[email protected]
- SPFv=spf1 include:spf.protection.outlook.com mx a include:_spf.strato.com -all
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