genoscope.cns.fr

Email infrastructure report · Last checked 24 Jul 2026, 01:29 UTC

Summary

genoscope.cns.fr 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 MXsmtp-fw.ibfj-evry.fr

MX records

Priority	Hostname	IPs
10	smtp-fw.ibfj-evry.fr	193.50.3.14

Authentication

SPF✓ Present -all

DKIM✓ Found (selectors: default)

DMARC✓ Present p=quarantine

Raw SPF record

v=spf1 +a:smtp3.genoscope.cns.fr/32 +a:hermes.genoscope.cns.fr/32 +a:courrier.cng.fr/32 +ip4:193.50.0.66 +ip4:195.83.221.201 -all

Raw DMARC record

v=DMARC1; p=quarantine; rua=mailto:dmarcreport@genoscope.cns.fr; ruf=mailto:dmarcreport@genoscope.cns.fr; fo=1;

Email behavior

Catch-all✗ No

Disposable✗ No

Free provider✗ No

STARTTLS? Could not determine (server rejected handshake)

SMTP response—

SMTP banner—

What this means

This domain has strong email authentication. Messages claiming to come from @genoscope.cns.fr can be cryptographically verified by recipients, making spoofing difficult. Deliverability for legitimate mail should be good.

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