Protecting Your Email Infrastructure with DMARC for Office 365
Domain owners implement DMARC to prevent email spoofing and phishing by instructing recipients’ mail servers on what actions to take against emails that are sent from your domain but don’t pass the DMARC authentication test. DMARC authentication is based on SPF and DKIM results. So, if an email fails SPF and/or DKIM checks, the DMARC…