hwk-heilbronn.de

Valid Email Server
Domain Lookup › hwk-heilbronn.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
hwk-heilbronn.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-28 19:19:31 UTC · ↺ Refresh

MX Hostnames

  • mx04.hornetsecurity.com
  • mx02.hornetsecurity.com
  • mx03.hornetsecurity.com
  • mx01.hornetsecurity.com

MX Priorities

  • mx01.hornetsecurity.com: 10
  • mx04.hornetsecurity.com: 40
  • mx02.hornetsecurity.com: 20
  • mx03.hornetsecurity.com: 30

A / AAAA Records

  • 176.95.69.164 (no PTR)

Mail Server IPs

  • 94.100.132.8 ↩ mx01.hornetsecurity.com
  • 94.100.136.7 ↩ mx04.hornetsecurity.com
  • 94.100.136.8 ↩ mx02.hornetsecurity.com
  • 94.100.134.8 ↩ mx03.hornetsecurity.com

SOA Record

Raw SOA dns01-tld.t-online.de dns.telekom.de 2025120201 21600 3600 604800 86400
Primary NS (mname)
dns01-tld.t-online.de
Admin Email (rname)
dns@telekom.de
Serial
2025120201
Refresh
21600s
Retry
3600s
Expire
604800s
Minimum TTL
86400s

Nameservers (NS)

dns02-tld.t-online.de
dns01-tld.t-online.de

SPF Record

✓ Soft Fail (~all)
v=spf1 a mx ip4:217.86.225.219 ip4:78.94.254.162 ip4:87.138.218.97 ip4:195.145.108.151 include:csa.wwwserver.net include:spf.hornetsecurity.com include:spf.protection.outlook.com ~all
📊 DNS lookups: 5/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

DKIM Selectors

✓ 3 found
selector1._domainkey
selector2._domainkey
default._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

5 records
  • MS=ms40488640
  • apple-domain-verification=2LpYdjZuhtuM39pr
  • SPFv=spf1 a mx ip4:217.86.225.219 ip4:78.94.254.162 ip4:87.138.218.97 ip4:195.145.108.151 include:csa.wwwserver.net include:spf.hornetsecurity.com include:spf.protection.outlook.com ~all
  • google-site-verification=VG4g3YMwt1bQ3rfimN4Q2KC8X3i5hvWAgfOQ7bQoVMY
  • google-site-verification=H9hPVkavy2dU0AMFB9LptX1d0sF85j0CJ63izVa7fR4
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