Measured 2026-06-19 · public DNS

Is isere.fr protected against email spoofing?

Yes — isere.fr enforces DMARC (p=reject).

DMARC

p=reject

SPF

~all

DKIM

3 selector(s)

Published record

v=DMARC1; p=reject; fo=1; rua=mailto:cd38.rua@emailsecurity.merox.io; ruf=mailto:cd38.ruf@emailsecurity.merox.io;

What this means

• Politique p=reject : protection maximale contre l’usurpation.
• SPF se termine par ~all (softfail) : acceptable en phase d’observation, viser -all à terme.
• Au moins une clé DKIM valide publiée.

How to fix it

Marc, the DMARC copilot, finds every sender, writes the exact DNS, and walks your domain safely from p=none to p=reject.