sk-group.com

Valid Email Server
Domain Lookup › sk-group.com

Domain Overview

DNS: ✓ 23h ago Checker: ✓ 23h ago
sk-group.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-11-10 14:18:17 UTC · ↺ Refresh

Add email validation to your forms — free

Add our free script to block 10,000+ disposable domains + perform other checks. No signup, unlimited checks.

MX validation Disposable detection Role accounts
Add to your signup form
<script src="https://check.verifyswift.com/"></script>
One line · No registration · See full docs & demo → · Customize →

MX Hostnames

  • skgroup-com0e.mail.protection.outlook.com

MX Priorities

  • skgroup-com0e.mail.protection.outlook.com: 0

A / AAAA Records

  • 198.202.211.1 (no PTR)

Mail Server IPs

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

SOA Record

Raw SOA ns1109.ui-dns.org hostmaster.1and1.com 2017101024 28800 7200 604800 300
Primary NS (mname)
ns1109.ui-dns.org
Admin Email (rname)
hostmaster@1and1.com
Serial
2017101024
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s

Nameservers (NS)

ns1109.ui-dns.org
ns1081.ui-dns.biz
ns1094.ui-dns.com
ns1061.ui-dns.de

SPF Record

✓ Strict (-all)
v=spf1 a mx include:spf.protection.outlook.com include:_spf.perfora.net include:_spf.kundenserver.de -all
📊 DNS lookups: 5/10
✓ 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

3 records
  • sophos-domain-verification=a431fa8d52140b6f1e98a9352e808a8d12253e4b8e0100cb7dfe0faec23ea56e
  • MS=ms58694448
  • SPFv=spf1 a mx include:spf.protection.outlook.com include:_spf.perfora.net include:_spf.kundenserver.de -all
Free · No signup required
Add email validation to your forms

Block disposable emails, validate MX records, detect role accounts — unlimited, forever free.

<script src="https://check.verifyswift.com/"></script>
One line of code · Works on any site · Customize →
See demo & docs
Deep verification
Full email verification for sk-group.com

SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.

No credit card required
Get 1,000 Free Credits