Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
cm-system.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-30 23:35:46 UTC · ↺ Refresh
MX Hostnames
- mailrelay3.cm-system.de
- mailrelay1.cm-system.de
MX Priorities
- mailrelay3.cm-system.de: 5
- mailrelay1.cm-system.de: 10
A / AAAA Records
- 195.145.156.63 ↩ plesk4.cm-system.de
- 2003:c3:3811:6::63 ↩ cm-system.de
Mail Server IPs
- 134.97.20.27 ↩ mailrelay3.cm-system.de
- 80.149.231.6 ↩ mailrelay1.cm-system.de
- 2003:c3:3811:4::6 ↩ mailrelay1.cm-system.de
SOA Record
Raw SOA
ns.cm-system.de dnsadmin.cm-system.de 2021042175 43200 3600 1209600 43200
Primary NS (mname)
ns.cm-system.de
Admin Email (rname)
dnsadmin@cm-system.de
Serial
2021042175
Refresh
43200s
Retry
3600s
Expire
1209600s
Minimum TTL
43200s
Nameservers (NS)
ns.cm-system.de
ns2.cm-system.de
SPF Record
✓ Soft Fail (~all)
v=spf1 a mx a:smtp.ispworks.net a:fax.voipoperator.de ip4:212.227.126.135 ip4:195.145.156.30 ip4:195.145.156.42 ip4:195.145.156.32 ip4:89.184.172.4 include:spf.protection.outlook.de ~all
📊 DNS lookups: 5/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]; ruf=mailto:[email protected]; pct=100; adkim=s; aspf=s
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Strict
· DKIM alignment: Strict
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
default._domainkey
mail._domainkey
✓ Public key: 216 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
3 records- google-site-verification=7EvOTVMbIw9k4HV7Sno7NmxdTz7lonmOG-P_lpaNx0w
- SPFv=spf1 a mx a:smtp.ispworks.net a:fax.voipoperator.de ip4:212.227.126.135 ip4:195.145.156.30 ip4:195.145.156.42 ip4:195.145.156.32 ip4:89.184.172.4 include:spf.protection.outlook.de ~all
- ifplPZver6k8dmhaQYMfVi+2j1rFrL0hdCO3ZZNWES/ik6KstlA7m23sMQrUNa+FypHpvXQwUdjP9vPQA3G0/g==
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