nsgb.de

Valid Email Server

Domain Overview

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

Checked via [email protected] · 2026-04-01 10:00:58 UTC · ↺ Refresh

MX Hostnames

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

MX Priorities

  • nsgb-de.mail.protection.outlook.com: 0

A / AAAA Records

  • 188.94.253.13 ↩ r4458.agenturserver.it

Mail Server IPs

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

SOA Record

Raw SOA ns1.mk.de hostmaster.mk.de 2025100702 10800 3600 604800 300
Primary NS (mname)
ns1.mk.de
Admin Email (rname)
hostmaster@mk.de
Serial
2025100702
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
300s

Nameservers (NS)

ns1.mk.de
ns2.mk.de

SPF Record

✓ Strict (-all)
v=spf1 include:spf.tixxt.com ip4:148.251.112.241 ip4:85.220.135.38 include:_spf.mk.de include:agenturserver.de include:spf.protection.outlook.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)

DKIM Selectors

✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: selector1

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

4 records
  • MS=ms16076117
  • 7LPQPkeH/kAs+KLdQb1aOpOZrwZp8g+ew0asXHyKFk27NguXIEjHgnol8uKeao/ByCNys7HqCCeizxUGkeLCGA==
  • _ivfjhoilwnvidkehcqgv1gd3tr75y23
  • SPFv=spf1 include:spf.tixxt.com ip4:148.251.112.241 ip4:85.220.135.38 include:_spf.mk.de include:agenturserver.de include:spf.protection.outlook.com -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
See demo & docs
Deep verification
Full email verification for nsgb.de

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

No credit card required
Get 1,000 Free Credits