MxToolbox is a free tool disposable to every IT and security team. We use it as part of our arsenal of tools for protecting our clients’ emails, ensuring we have enabled Sender Policy Framework (SPF), DomainKeys Identified Mail (DKIM), and Domain-based Message Authentication, Reporting & Conformance (DMARC). Don’t know what this gibberish means? No worries, we’ll explain what they mean, why they’re important, and how to enable them. Let’s get started!