fw-koeln.de

Valid Email Server
Domain Lookup › fw-koeln.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
fw-koeln.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-23 16:10:58 UTC · ↺ Refresh

MX Hostnames

  • fwkoeln-de0e.mail.protection.outlook.com

MX Priorities

  • fwkoeln-de0e.mail.protection.outlook.com: 100

A / AAAA Records

  • 176.28.13.69 ↩ mail.brainest-support.de

Mail Server IPs

  • 52.101.168.0 ↩ mail-beup281cu00100.inbound.protection.outlook.com
  • 52.101.170.0 ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
  • 52.101.170.1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
  • 52.101.170.2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
  • 2a01:111:f403:ca2d:: ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
  • 2a01:111:f403:ca27:: ↩ mail-beup281cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:ca2d::2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
  • 2a01:111:f403:ca2d::1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com

SOA Record

Raw SOA ns1.is-fun.net hostmaster.is-fun.com 2008050609 86400 7200 604800 86400
Primary NS (mname)
ns1.is-fun.net
Admin Email (rname)
hostmaster@is-fun.com
Serial
2008050609
Refresh
86400s
Retry
7200s
Expire
604800s
Minimum TTL
86400s

Nameservers (NS)

ns2.is-fun.net
ns1.is-fun.net

SPF Record

✓ Soft Fail (~all)
v=spf1 a mx include:spf.protection.outlook.com ip4:212.114.33.0/24 ip4:212.114.34.0/24 ip4:212.114.35.0/24 ip4:212.114.36.0/24 ip4:212.114.37.0/24 ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate 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 a mx include:spf.protection.outlook.com ip4:212.114.33.0/24 ip4:212.114.34.0/24 ip4:212.114.35.0/24 ip4:212.114.36.0/24 ip4:212.114.37.0/24 ~all
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