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Email tutorials: configure, troubleshoot and monitor

These guides are meant to be followed: they start from a concrete task and detail the steps, the checks and the mistakes to avoid. They are written for IT teams, marketing managers and business owners who want to understand what they change before touching their DNS zone.

Start with configuring SPF, DKIM and DMARC without breaking your email, which is the basis for everything else. Then learn to read a DMARC XML report to identify who sends with your domain, and to create a sending subdomain for tools such as Brevo, ActiveCampaign or Mailjet.

Other tutorials help you troubleshoot: setting up Google Postmaster Tools to follow your reputation, understanding why messages land in spam or in Gmail's Promotions tab, and interpreting the main SMTP error codes. Each guide also exists in French.