oneofftech.de
Email infrastructure report · Last checked
Summary
oneofftech.de uses Self-hosted / Custom for email and has SPF, DKIM, and DMARC configured. It is not catch-all.
Mail provider
ProviderSelf-hosted / Custom self-hosted
Primary MXmail.oneofftech.de
MX records
| Priority | Hostname | IPs |
|---|---|---|
| 20 | mail.oneofftech.de | 94.130.58.22 |
Authentication
SPF✓ Present
-allDKIM✓ Found (selectors: dkim)
DMARC✓ Present
p=rejectRaw SPF record
v=spf1 mx a:mail.oneofftech.de -all
Raw DMARC record
v=DMARC1; p=reject; rua=mailto:admin@oneofftech.de; ruf=mailto:admin@oneofftech.de; adkim=s; aspf=s
Email behavior
Catch-all✗ No
Disposable✗ No
Free provider✗ No
STARTTLS✓ Supported
SMTP response115ms
SMTP banner220 mail.oneofftech.de ESMTP ready
What this means
This domain has strong email authentication. Messages claiming to come from @oneofftech.de can be cryptographically verified by recipients, making spoofing difficult. Deliverability for legitimate mail should be good.
Refresh this report
Cached results are kept indefinitely. If you think the data above is out of date, run a fresh check below. Refreshes are rate-limited (1 per domain every 5 minutes).
CheckMail's API verifies real-time deliverability with SMTP checks, not just DNS lookups. 100 free credits, no credit card required.
Get an API key →curl https://api.checkmail.dev/v1/verify \ -G --data-urlencode "email=test@oneofftech.de" \ -H "Authorization: Bearer cm_live_..."