lehrmess.de

Valid Email Server
Domain Lookup › lehrmess.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
lehrmess.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-04-02 06:00:41 UTC · ↺ Refresh

MX Hostnames

  • srv1.rechnerwolke.de

MX Priorities

  • srv1.rechnerwolke.de: 10

A / AAAA Records

  • 87.118.114.65 ↩ srv1.rechnerwolke.de

Mail Server IPs

  • 87.118.114.65 ↩ srv1.rechnerwolke.de

SOA Record

Raw SOA ns2.km32629-01.keymachine.de c\.ulrich.lehrmess.de 2024050601 10800 3600 1209600 10800
Primary NS (mname)
ns2.km32629-01.keymachine.de
Admin Email (rname)
c\@ulrich.lehrmess.de
Serial
2024050601
Refresh
10800s
Retry
3600s
Expire
1209600s
Minimum TTL
10800s

Nameservers (NS)

ns2.km32629-01.keymachine.de
ns.km32629-01.keymachine.de

SPF Record

✓ Strict (-all)
v=spf1 a mx a:srv1.rechnerwolke.de -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

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

DKIM Selectors

✓ 1 found
default._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: default

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

All TXT Records

2 records
  • SPFv=spf1 a mx a:srv1.rechnerwolke.de -all
  • knowbe4-site-verification=fc5b2042853b33f5ce2ae22d3b89ae80
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