Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
stadtwerke-cottbus.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-25 03:26:31 UTC · ↺ Refresh
MX Hostnames
- mail.stadtwerke-cottbus.de
MX Priorities
- mail.stadtwerke-cottbus.de: 10
A / AAAA Records
- 37.228.154.112 ↩ cloud6-vm204.de-nserver.de
Mail Server IPs
- 185.162.215.135 ↩ mail.stadtwerke-cottbus.de
SOA Record
Raw SOA
shades01.rzone.de hostmaster.strato-rz.de 2020052092 86400 7200 604800 300
Primary NS (mname)
shades01.rzone.de
Admin Email (rname)
hostmaster@strato-rz.de
Serial
2020052092
Refresh
86400s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
docks10.rzone.de
shades01.rzone.de
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com mx -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1;p=quarantine;rua=mailto:[email protected];ruf=mailto:[email protected];ri=86400;fo=1;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 216 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
3 records- _globalsign-domain-verification=1-DXtQufU-Y8bqFS3R2hLofxLIG3Mfzorc8f8wQiSV
- SPFv=spf1 include:spf.protection.outlook.com mx -all
- apple-domain-verification=ndFc0DMYEjEl6jyB
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