Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
koelner-pension.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-20 06:22:35 UTC · ↺ Refresh
MX Hostnames
- mail3.mailhosting.a1a-server.de
MX Priorities
- mail3.mailhosting.a1a-server.de: 10
A / AAAA Records
- 185.115.179.234 ↩ ssd6.ssdhosting.a1a-server.de
- 2a02:74a0:a008:2014:f816:3eff:fe66:e405 ↩ ssd6.ssdhosting.a1a-server.de
Mail Server IPs
- 185.115.179.215 ↩ mail3.mailhosting.a1a-server.de
- 2a02:74a0:a008:2011:f816:3eff:feb9:7b40 ↩ mail3.mailhosting.a1a-server.de
SOA Record
Raw SOA
ns1.aditsystems.hosting support.aditsystems.de 2020020672 86400 3600 1209600 1800
Primary NS (mname)
ns1.aditsystems.hosting
Admin Email (rname)
support@aditsystems.de
Serial
2020020672
Refresh
86400s
Retry
3600s
Expire
1209600s
Minimum TTL
1800s
Nameservers (NS)
ns2.aditsystems.hosting
ns1.aditsystems.hosting
ns3.aditsystems.hosting
SPF Record
✓ Strict (-all)
v=spf1 include:_spf.a1a-server.de -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✗ None detectedNo 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
1 record- SPFv=spf1 include:_spf.a1a-server.de -all
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