Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
stbk-koeln.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-22 05:32:09 UTC · ↺ Refresh
MX Hostnames
- mailin12.prod.datevnet.de
- mailin11.prod.datevnet.com
MX Priorities
- mailin12.prod.datevnet.de: 0
- mailin11.prod.datevnet.com: 0
A / AAAA Records
- 37.202.7.18 (no PTR)
Mail Server IPs
- 193.27.49.217 ↩ mailin12.prod.datevnet.de
- 2a00:e50:f155:7::d9 ↩ mailin12.prod.datevnet.de
- 193.27.49.216 ↩ mailin11.prod.datevnet.com
- 2a00:e50:f155:7::d8 ↩ mailin11.prod.datevnet.com
SOA Record
Raw SOA
ns01.datev.de dnsmaster.datev.de 2603211036 43200 7200 2419200 3600
Primary NS (mname)
ns01.datev.de
Admin Email (rname)
dnsmaster@datev.de
Serial
2603211036
Refresh
43200s
Retry
7200s
Expire
2419200s
Minimum TTL
3600s
Nameservers (NS)
ns02.datev.com
ns01.datev.de
SPF Record
✓ Soft Fail (~all)
v=spf1 a mx a:otc-de-spf.mms.t-systems-service.com include:datevnet._spf.datev.de include:sendgrid.net ip4:149.72.218.242 include:agenturserver.de ~all
📊 DNS lookups: 6/10
~ Soft fail (~all) — moderate 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 a mx a:otc-de-spf.mms.t-systems-service.com include:datevnet._spf.datev.de include:sendgrid.net ip4:149.72.218.242 include:agenturserver.de ~all
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