f-cat.de

Valid Email Server
Domain Lookup › f-cat.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
f-cat.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-27 15:37:29 UTC · ↺ Refresh

MX Hostnames

  • fcat-de0c.mail.protection.outlook.com

MX Priorities

  • fcat-de0c.mail.protection.outlook.com: 0

A / AAAA Records

  • 213.165.86.219 ↩ ip213-165-86-219.pbiaas.com

Mail Server IPs

  • 52.101.73.8 ↩ mail-am0pr04cu00500.inbound.protection.outlook.com
  • 52.101.68.5 ↩ mail-du2pr03cu00105.inbound.protection.outlook.com
  • 52.101.68.32 ↩ mail-db3pr0202cu00200.inbound.protection.outlook.com
  • 52.101.73.15 ↩ mail-am9pr04cu00107.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::e ↩ mail-db8pr02cu00106.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::b ↩ mail-dbbpr03cu00103.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::8 ↩ mail-db5pr02cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::20 ↩ mail-as8pr05cu00400.inbound.protection.outlook.com

SOA Record

Raw SOA ns1106.ui-dns.biz hostmaster.1und1.com 2017060163 28800 7200 604800 600
Primary NS (mname)
ns1106.ui-dns.biz
Admin Email (rname)
hostmaster@1und1.com
Serial
2017060163
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s

Nameservers (NS)

ns1081.ui-dns.de
ns1046.ui-dns.org
ns1106.ui-dns.biz
ns1119.ui-dns.com

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:spf.crsend.com include:spf.mandrillapp.com -all
📊 DNS lookups: 3/10
✓ 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

2 records
  • MS=ms48897380
  • SPFv=spf1 include:spf.protection.outlook.com include:spf.crsend.com include:spf.mandrillapp.com -all
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