Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
groeger-gruppe.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-24 17:47:15 UTC · ↺ Refresh
MX Hostnames
- smtp02.sig-noc.net
- smtp03.sig-noc.net
- smtp01.sig-noc.net
MX Priorities
- smtp03.sig-noc.net: 10
- smtp01.sig-noc.net: 10
- smtp02.sig-noc.net: 170
A / AAAA Records
- 195.50.154.41 ↩ nu-isp04.sig-noc.net
Mail Server IPs
- 195.50.154.59 ↩ smtp03.sig-noc.net
- 195.50.154.10 ↩ smtp01.sig-noc.net
- 87.191.63.195 ↩ smtp02.sig-noc.net
SOA Record
Raw SOA
ns3.sig-noc.net hostmaster.sig-ulm.de 2026071702 10800 3600 604800 38400
Primary NS (mname)
ns3.sig-noc.net
Admin Email (rname)
hostmaster@sig-ulm.de
Serial
2026071702
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
38400s
Nameservers (NS)
ns3.sig-noc.net
ns02.versatel.de
ns2.sig-noc.net
SPF Record
✓ Strict (-all)
v=spf1 mx a include:spf.sig-noc.net include:spf.protection.outlook.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
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- MS=ms96674746
- MS=7125BF9C4D86464572CAA3001B58B3D725598D4B
- SPFv=spf1 mx a include:spf.sig-noc.net include:spf.protection.outlook.com -all
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