preuer.de

Valid Email Server
Domain Lookup › preuer.de

Domain Overview

DNS: ✓ 3h ago Checker: ✓ 3h ago
preuer.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-09-04 14:24:07 UTC · ↺ Refresh

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MX Hostnames

  • preuer-de.mail.protection.outlook.com

MX Priorities

  • preuer-de.mail.protection.outlook.com: 10

A / AAAA Records

  • 83.138.84.128 ↩ fitayu.han-solo.net

Mail Server IPs

  • 52.101.91.159 ↩ mail-matpr04cu00207.inbound.protection.outlook.com
  • 52.101.68.3 ↩ mail-db7pr03cu00403.inbound.protection.outlook.com
  • 52.101.91.153 ↩ mail-matpr04cu00101.inbound.protection.outlook.com
  • 52.101.73.19 ↩ mail-as8pr04cu00803.inbound.protection.outlook.com
  • 2a01:111:f403:ca04:: ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:ca21::8 ↩ mail-matpr04cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::e ↩ mail-db8pr02cu00106.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::6 ↩ mail-am4pr0401cu00106.inbound.protection.outlook.com

SOA Record

Raw SOA ns1.ntdns.de hostmaster.fastit.net 2026090301 10800 3600 604800 3600
Primary NS (mname)
ns1.ntdns.de
Admin Email (rname)
hostmaster@fastit.net
Serial
2026090301
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

ns3.ntdns.de
ns1.ntdns.de
ns2.ntdns.de

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:alfa-gruppe.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

~ Quarantine
v=DMARC1;p=quarantine;pct=100
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)

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

4 records
  • atlassian-domain-verification=OheiqdAbrLzoPX8Bhm6Ttld7IU8Zqv/OGAL/AiGTfZF8rRdPUp6vRdmNiYcFQbmV
  • D-TRUST=POTUS5S72Y76O2X3VRBWLYP
  • atlassian-sending-domain-verification=4825e07e-3f66-4da9-b356-303a7b467b17
  • SPFv=spf1 include:spf.protection.outlook.com include:alfa-gruppe.com -all
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