Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
schmidt-heilbronn.de
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-19 07:33:44 UTC · ↺ Refresh
MX Hostnames
- de-smtp-inbound-1.mimecast.com
- de-smtp-inbound-2.mimecast.com
MX Priorities
- de-smtp-inbound-2.mimecast.com: 10
- de-smtp-inbound-1.mimecast.com: 10
A / AAAA Records
- 193.29.186.203 ↩ www.schmidt-gastransporte.eu
Mail Server IPs
- 194.104.108.22 ↩ de-smtp-inbound-1.mimecast.com
- 194.104.110.22 ↩ de-smtp-inbound-2.mimecast.com
SOA Record
Raw SOA
ns3.dsb.net hostmaster.dsb.net 2026031801 14400 1800 604800 86400
Primary NS (mname)
ns3.dsb.net
Admin Email (rname)
hostmaster@dsb.net
Serial
2026031801
Refresh
14400s
Retry
1800s
Expire
604800s
Minimum TTL
86400s
Nameservers (NS)
ns4.dsb.net
ns3.dsb.net
SPF Record
✓ Strict (-all)
v=spf1 include:spf.dsb.net include:spf.protection.outlook.com include:de._netblocks.mimecast.com include:_spf.cmail.ondemand.com include:amazonses.com -all
📊 DNS lookups: 5/10
✓ 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
2 records- SPFv=spf1 include:spf.dsb.net include:spf.protection.outlook.com include:de._netblocks.mimecast.com include:_spf.cmail.ondemand.com include:amazonses.com -all
- MS=ms23933203
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