donbosco-schule-passau.de

Valid Email Server
Domain Lookup › donbosco-schule-passau.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
donbosco-schule-passau.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-29 00:38:42 UTC · ↺ Refresh

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MX Hostnames

  • mx03.secure-mailgate.com
  • mx04.secure-mailgate.com

MX Priorities

  • mx04.secure-mailgate.com: 10
  • mx03.secure-mailgate.com: 10

A / AAAA Records

  • 78.47.94.105 ↩ h1.luger.de
  • 2a01:4f8:c012:617b::1 ↩ h1.luger.de

Mail Server IPs

  • 46.243.88.177 ↩ node04.secure-mailgate.com
  • 46.243.88.175 ↩ node03.secure-mailgate.com
  • 46.243.88.176 ↩ node04.secure-mailgate.com
  • 46.243.88.174 ↩ node03.secure-mailgate.com

SOA Record

Raw SOA dns1.luger.de hostmaster.luger.de 2025033113 28800 7200 604800 3600
Primary NS (mname)
dns1.luger.de
Admin Email (rname)
hostmaster@luger.de
Serial
2025033113
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

dns2.luger.de
dns3.luger.de
dns1.luger.de

SPF Record

✓ Strict (-all)
v=spf1 a mx a:h1.luger.de a:mx03.secure-mailgate.com a:mx04.secure-mailgate.com -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine; adkim=r; aspf=s;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Strict · DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)

DKIM Selectors

✓ 1 found
default._domainkey
✓ Public key: 392 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

3 records
  • SPFv=spf1 a mx a:h1.luger.de a:mx03.secure-mailgate.com a:mx04.secure-mailgate.com -all
  • apple-domain-verification=q0GiMNpEeBu9mIKG
  • MS=ms39647150
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