> For the complete documentation index, see [llms.txt](https://docs.stoik.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.stoik.io/cyber-best-practices/fr/renforcez-votre-environnement/email-authentication.md).

# Authentification par e-mail

L’authentification des e-mails protège votre domaine contre l’usurpation d’identité et le phishing en permettant aux serveurs de messagerie récepteurs de vérifier qu’un message provient bien de vous. Le Scan Externe de Stoïk signale les domaines auxquels ces enregistrements manquent ou qui les configurent mal.

Configurez les deux :

* [Qu’est-ce que SPF et comment le configurer ?](/cyber-best-practices/fr/renforcez-votre-environnement/email-authentication/what-is-spf-and-how-do-i-configure-it.md): indique quels serveurs sont autorisés à envoyer des e-mails au nom de votre domaine.
* [Qu’est-ce que DMARC et comment le configurer ?](/cyber-best-practices/fr/renforcez-votre-environnement/email-authentication/what-is-dmarc-and-how-do-i-configure-it.md): indique aux serveurs récepteurs quoi faire des messages dont l’authentification échoue, et vous fournit des rapports.


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