stf-group.de

Valid Email Server
Domain Lookup › stf-group.de
Live data — DNS records and disposable check were just fetched and saved.

Domain Overview

DNS: ⚡ live Checker: ⚡ live
stf-group.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-09-04 17:43:39 UTC · ↺ Refresh

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MX Hostnames

  • stfgroup-de0i.mail.protection.outlook.com

MX Priorities

  • stfgroup-de0i.mail.protection.outlook.com: 0

A / AAAA Records

  • 104.21.28.242 (no PTR)
  • 172.67.147.232 (no PTR)
  • 2606:4700:3034::ac43:93e8
  • 2606:4700:3032::6815:1cf2

Mail Server IPs

  • 52.101.170.0 ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
  • 52.101.170.2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
  • 52.101.170.1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
  • 52.101.168.0 ↩ mail-beup281cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:ca27:: ↩ mail-beup281cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:ca2d:: ↩ mail-fr5p281cu00500.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 clyde.ns.cloudflare.com dns.cloudflare.com 2413907353 10000 2400 604800 1800
Primary NS (mname)
clyde.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2413907353
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

clyde.ns.cloudflare.com
meera.ns.cloudflare.com

SPF Record

✓ Soft Fail (~all)
v=spf1 include:spf.mailjet.com mx include:spf.variomedia.de include:spf.protection.outlook.com include:spf.emailsignatures365.com include:_spf.protonmail.ch ~all
📊 DNS lookups: 6/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✓ Reject
v=DMARC1; p=reject;
✓ Reject — strongest protection
📋 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

3 records
  • MS=ms26632848
  • protonmail-verification=9164fda8e9f72307d8e52d0c1cded0ff24b944e7
  • SPFv=spf1 include:spf.mailjet.com mx include:spf.variomedia.de include:spf.protection.outlook.com include:spf.emailsignatures365.com include:_spf.protonmail.ch ~all
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