collegium-stb.de

Valid Email Server

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
collegium-stb.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-28 16:52:36 UTC · ↺ Refresh

MX Hostnames

  • maildomain.datevnet.com
  • maildomain.datevnet.de

MX Priorities

  • maildomain.datevnet.com: 20
  • maildomain.datevnet.de: 10

A / AAAA Records

  • 185.237.67.155 ↩ shared-clump0033-web.agenturserver.it

Mail Server IPs

  • 193.27.49.221 ↩ maildomain.datevnet.com
  • 193.27.49.207 ↩ maildomain.datevnet.com
  • 2a00:e50:f155:7::cf ↩ maildomain.datevnet.com
  • 2a00:e50:f155:7::dd ↩ maildomain.datevnet.com
  • 193.27.49.220 ↩ maildomain.datevnet.de
  • 193.27.49.206 ↩ maildomain.datevnet.de
  • 2a00:e50:f155:7::dc ↩ maildomain.datevnet.de
  • 2a00:e50:f155:7::ce ↩ maildomain.datevnet.de

SOA Record

Raw SOA ns01.intersolute.de ticket.intersolute.de 2026032601 86400 10800 3600000 86400
Primary NS (mname)
ns01.intersolute.de
Admin Email (rname)
ticket@intersolute.de
Serial
2026032601
Refresh
86400s
Retry
10800s
Expire
3600000s
Minimum TTL
86400s

Nameservers (NS)

ns04.intersolute.eu
ns01.intersolute.de
ns03.intersolute.eu
ns02.intersolute.de

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:datevnet._spf.datev.de -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ p=none
v=DMARC1;p=none;pct=100;rua=mailto:[email protected];ri=86400;aspf=r;adkim=r;fo=1
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

DKIM Selectors

✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 392 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

2 records
  • SPFv=spf1 include:spf.protection.outlook.com include:datevnet._spf.datev.de -all
  • MS=ms64315849
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 collegium-stb.de

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

No credit card required
Get 1,000 Free Credits