Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
cowerk.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-19 18:22:26 UTC · ↺ Refresh
MX Hostnames
- sfz.in.tmes.trendmicro.eu
MX Priorities
- sfz.in.tmes.trendmicro.eu: 10
A / AAAA Records
- 78.46.130.9 ↩ dedi3592.your-server.de
- 2a01:4f8:d0a:40c5::2 ↩ dedi3592.your-server.de
Mail Server IPs
- 18.185.115.145 ↩ in.tmes.trendmicro.eu
- 18.185.115.146 ↩ in.tmes.trendmicro.eu
- 18.185.115.147 ↩ in.tmes.trendmicro.eu
SOA Record
Raw SOA
shades17.rzone.de hostmaster.strato-rz.de 2020060465 86400 7200 604800 300
Primary NS (mname)
shades17.rzone.de
Admin Email (rname)
hostmaster@strato-rz.de
Serial
2020060465
Refresh
86400s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
docks12.rzone.de
shades17.rzone.de
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:spf.tmes.trendmicro.com include:spf-de.emailsignatures365.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; pct=100; rua=mailto:[email protected]
~ 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: 392 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
1 record- SPFv=spf1 include:spf.protection.outlook.com include:spf.tmes.trendmicro.com include:spf-de.emailsignatures365.com -all
Full email verification for cowerk.de
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