katholisches-duesseldorf.de

Valid Email Server
Domain Lookup › katholisches-duesseldorf.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
katholisches-duesseldorf.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-04-02 18:53:47 UTC · ↺ Refresh

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MX Hostnames

  • mx-01-eu-central-1.prod.hydra.sophos.com
  • mx-02-eu-central-1.prod.hydra.sophos.com

MX Priorities

  • mx-01-eu-central-1.prod.hydra.sophos.com: 10
  • mx-02-eu-central-1.prod.hydra.sophos.com: 20

A / AAAA Records

  • 208.82.73.21 ↩ erz-live.dns.boreus.de

Mail Server IPs

  • 18.159.80.41 ↩ ec2-18-159-80-41.eu-central-1.compute.amazonaws.com
  • 52.57.183.85 ↩ ec2-52-57-183-85.eu-central-1.compute.amazonaws.com

SOA Record

Raw SOA nsa1.schlundtech.de admin.gwpc.de 2025031704 43200 7200 1209600 600
Primary NS (mname)
nsa1.schlundtech.de
Admin Email (rname)
admin@gwpc.de
Serial
2025031704
Refresh
43200s
Retry
7200s
Expire
1209600s
Minimum TTL
600s

Nameservers (NS)

nsa1.schlundtech.de
nsc1.schlundtech.de
nsb1.schlundtech.de
nsd1.schlundtech.de

SPF Record

✓ Strict (-all)
v=spf1 mx a:mail.katholisches-duesseldorf.de ip4:87.191.222.41 ip4:91.90.158.122/32 ip4:91.90.158.123/32 ip4:91.90.158.111/32 ip4:91.90.158.112/32 ip4:91.90.158.113/32 include:_spf_eucentral1.prod.hydra.sophos.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)

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

3 records
  • sophos-domain-verification=e5095c3cf02d5048e8928e6a8d45222b9ea81909
  • SPFv=spf1 mx a:mail.katholisches-duesseldorf.de ip4:87.191.222.41 ip4:91.90.158.122/32 ip4:91.90.158.123/32 ip4:91.90.158.111/32 ip4:91.90.158.112/32 ip4:91.90.158.113/32 include:_spf_eucentral1.prod.hydra.sophos.com -all
  • sophos-domain-verification=7407deab8a091c2f8309a55728d17fb151ff872fbdb3090d89411f4e08397854
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