Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
schulz-systemtechnik.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-31 13:33:29 UTC · ↺ Refresh
MX Hostnames
- gw.schulz-systemtechnik.de
MX Priorities
- gw.schulz-systemtechnik.de: 10
A / AAAA Records
- 81.169.145.64 ↩ w00.rzone.de
- 2a01:238:20a:202:1064:: ↩ w00.rzone.de
Mail Server IPs
- 80.147.118.41 ↩ gw.schulz-systemtechnik.de
SOA Record
Raw SOA
shades10.rzone.de hostmaster.strato-rz.de 2020052240 86400 7200 604800 300
Primary NS (mname)
shades10.rzone.de
Admin Email (rname)
hostmaster@strato-rz.de
Serial
2020052240
Refresh
86400s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
docks08.rzone.de
shades10.rzone.de
SPF Record
✓ Soft Fail (~all)
v=spf1 mx ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1;p=quarantine;rua=mailto:[email protected];ruf=mailto:[email protected];
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
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 ~all
Full email verification for schulz-systemtechnik.de
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits