firstreisebuero.de

Valid Email Server
Domain Lookup › firstreisebuero.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
firstreisebuero.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-21 11:13:58 UTC · ↺ Refresh

MX Hostnames

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

MX Priorities

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

A / AAAA Records

  • 5.22.145.121 ↩ relay.mail-forwarder.io
  • 5.22.145.16 ↩ relay.mail-forwarder.io
  • 2a00:18e0:5:3:dfe2:c743:85aa:61bc
  • 2a00:18e0:5:2:7577:4e4d:413b:f507

Mail Server IPs

  • 52.101.73.2 ↩ mail-as9pr07cu00302.inbound.protection.outlook.com
  • 52.101.73.1 ↩ mail-am3pr04cu00501.inbound.protection.outlook.com
  • 52.101.73.22 ↩ mail-am7pr05cu00106.inbound.protection.outlook.com
  • 52.101.73.6 ↩ mail-am6pr04cu00306.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::e ↩ mail-db8pr02cu00106.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::8 ↩ mail-db5pr02cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::d ↩ mail-db6pr03cu00105.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::9 ↩ mail-db7pr03cu00601.inbound.protection.outlook.com

SOA Record

Raw SOA ns01.brandshelter.com tech.brandshelter.com 2023050200 10800 3600 604800 300
Primary NS (mname)
ns01.brandshelter.com
Admin Email (rname)
tech@brandshelter.com
Serial
2023050200
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
300s

Nameservers (NS)

ns01.brandshelter.com
ns02.brandshelter.net

SPF Record

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

DMARC Record

✗ p=none
v=DMARC1; p=none; pct=100; fo=1; ri=3600; rua=mailto:[email protected]; ruf=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

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

2 records
  • MS=ms61173659
  • SPFv=spf1 include:mail.tuigroup.com -all
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