retech-gmbh.de

Valid Email Server
Domain Lookup › retech-gmbh.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
retech-gmbh.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-25 03:11:16 UTC · ↺ Refresh

MX Hostnames

  • retechgmbh-de01e.mail.protection.outlook.com

MX Priorities

  • retechgmbh-de01e.mail.protection.outlook.com: 1

A / AAAA Records

  • 84.38.79.57 ↩ server57.adminflex.de

Mail Server IPs

  • 52.101.68.36 ↩ mail-db5pr02cu00104.inbound.protection.outlook.com
  • 52.101.68.39 ↩ mail-db7pr03cu00607.inbound.protection.outlook.com
  • 52.101.73.16 ↩ mail-as2pr05cu00100.inbound.protection.outlook.com
  • 52.101.68.29 ↩ mail-dbapr03cu00105.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::9 ↩ mail-as8pr04cu00801.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::20 ↩ mail-as8pr05cu00400.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::1 ↩ mail-as9pr07cu00301.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::4 ↩ mail-am0pr04cu00504.inbound.protection.outlook.com

SOA Record

Raw SOA dns1.nodeeps.de hostmaster.nodeeps.de 2020050719 10800 1800 604800 1800
Primary NS (mname)
dns1.nodeeps.de
Admin Email (rname)
hostmaster@nodeeps.de
Serial
2020050719
Refresh
10800s
Retry
1800s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

dns2.nodeeps.de
dns1.nodeeps.de

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

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 include:spf.protection.outlook.com -all
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