schulergroup.com

Valid Email Server
Domain Lookup › schulergroup.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
schulergroup.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-04-01 01:24:05 UTC · ↺ Refresh

MX Hostnames

  • mgate02.schulergroup.com
  • mgate01.schulergroup.com

MX Priorities

  • mgate01.schulergroup.com: 10
  • mgate02.schulergroup.com: 10

A / AAAA Records

  • 193.28.217.30 ↩ merkur.schuler.de

Mail Server IPs

  • 212.87.143.250 ↩ mgate01.schulergroup.com
  • 193.28.217.66 ↩ mgate02.schulergroup.com

SOA Record

Raw SOA ns1.schuler-isp.net registry.schulergroup.com 2026032001 28800 3600 1209600 86400
Primary NS (mname)
ns1.schuler-isp.net
Admin Email (rname)
registry@schulergroup.com
Serial
2026032001
Refresh
28800s
Retry
3600s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

ns0180.secondary.cloudflare.com
ns0017.secondary.cloudflare.com

SPF Record

✓ Strict (-all)
v=spf1 mx include:_spf1.schulergroup.com include:_spf4-5-6.schulergroup.com include:_spf7.schulergroup.com include:spf.protection.outlook.com -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected],mailto:[email protected]; ruf=mailto:[email protected],mailto:[email protected]; sp=none; fo=1; ri=86400; adkim=r; aspf=r; rf=afrf;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
↳ Subdomain policy: none

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

13 records
  • FYrDf4IzHJVmrQMgSjDDgEgcT8zLDFo19O2Lu3dkcoAeyuxrtiaMtWUkarjxXDFsdiuVdp+7eq0pAEuWPYxrcw==
  • MS=F2AC259054A36F2BF12AA98BAE0AAA7BEC49A595
  • OVvlyd8s7IZZ/m3ecDjFagCPQ6t6KquMG6sJeXMjixLRVUjuVPHP+41fQN16L7+vUjPAdZHPzcKRs9dsx49f+Q==
  • apple-domain-verification=Dv1ll6vB75ngRois
  • cisco-ci-domain-verification=13aa02b7ff4f3397a295c163c4c89cfadf65469d9af3d47883f01e7a55adcde1
  • flexera-domain-verification-roarrphvvkvqfcfj
  • google-site-verification=9U1UEnitSN3aZk2dW70LDEUXychPXRW_N2Zu6qD56HY
  • google-site-verification=_zvX25ymGo8k0mduZ7mKXKCs1ow0OWqJ6ZavLBH4K04
  • knowbe4-site-verification=33306e78557b920581e62798919ca7ed
  • test=foo
  • SPFv=spf1 mx include:_spf1.schulergroup.com include:_spf4-5-6.schulergroup.com include:_spf7.schulergroup.com include:spf.protection.outlook.com -all
  • v=spf2.0/mfrom,pra mx include:_sidf1.schulergroup.com include:_sidf4-5-6.schulergroup.com include:_sidf7.schulergroup.com include:_sidf8.schulergroup.com -all
  • webexdomainverification.=35a21f5d-432d-4493-8b25-4f5e0d6490c1
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 schulergroup.com

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

No credit card required
Get 1,000 Free Credits