rheinmaasklinikum.de

Valid Email Server
Domain Lookup › rheinmaasklinikum.de

Domain Overview

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

Checked via [email protected] · 2026-04-02 22:04:56 UTC · ↺ Refresh

MX Hostnames

  • mailext01.knappschaft-kliniken.de
  • mailext02.knappschaft-kliniken.de

MX Priorities

  • mailext02.knappschaft-kliniken.de: 20
  • mailext01.knappschaft-kliniken.de: 10

A / AAAA Records

  • 212.23.140.221 (no PTR)

Mail Server IPs

  • 212.23.143.116 ↩ mailext02.knappschaft-kliniken.de
  • 212.23.143.115 ↩ mailext01.knappschaft-kliniken.de

SOA Record

Raw SOA adns01.de.tmr.net hostmaster.rheinmaasklinikum.de 1771501632 10800 1800 604800 3600
Primary NS (mname)
adns01.de.tmr.net
Admin Email (rname)
hostmaster@rheinmaasklinikum.de
Serial
1771501632
Refresh
10800s
Retry
1800s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

adns02.de.tmr.net
adns01.de.tmr.net

SPF Record

✓ Strict (-all)
v=spf1 mx ip4:212.23.143.115 ip4:212.23.143.116 ip4:193.32.64.175 ip4:212.23.143.117 -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

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

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

5 records
  • cisco-ci-domain-verification=3f933946c211dc8f43d843ada8db49b712daf6c71f60b95592f0f17aec88bc11
  • google-site-verification=LbcYjiUyeWQv7DZ_JGVvz8pwPZ6iERFMLl3X0mcxcEY
  • SPFv=spf1 mx ip4:212.23.143.115 ip4:212.23.143.116 ip4:193.32.64.175 ip4:212.23.143.117 -all
  • apple-domain-verification=Pa4JHDrgkHltDsbu
  • _lgqxm36ggqq6m5y1daw0noeulj4erhw
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