preppo.de

Valid Email Server
Domain Lookup › preppo.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
preppo.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-29 08:33:21 UTC · ↺ Refresh

MX Hostnames

  • server.preppo.de

MX Priorities

  • server.preppo.de: 0

A / AAAA Records

  • 91.216.248.23 (no PTR)
  • 91.216.248.22 ↩ frontend.lima-city.de
  • 91.216.248.20 ↩ frontend.lima-city.de
  • 2a00:f48:2000:affe::50 ↩ frontend.lima-city.de

Mail Server IPs

  • 37.24.243.174 ↩ server.preppo.de

SOA Record

Raw SOA ns1.lima-city.de hostmaster.lima-city.de 1774725358 86400 7200 1209600 3600
Primary NS (mname)
ns1.lima-city.de
Admin Email (rname)
hostmaster@lima-city.de
Serial
1774725358
Refresh
86400s
Retry
7200s
Expire
1209600s
Minimum TTL
3600s

Nameservers (NS)

ns1.lima-city.de
ns3.lima-city.de
ns2.lima-city.de

SPF Record

✓ Strict (-all)
v=spf1 mx -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine; sp=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; adkim=r; aspf=r; ri=86400; fo=1; pct=100
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject

DKIM Selectors

✗ None detected

No 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
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