Information securityfromWordtothewise1 week agoDon't send customer-generated contentAuthenticated email protocols (SPF, DKIM, DMARC, BIMI) can be abused via DKIM replay to deliver convincing phishing messages.
Tech industryfromTheregister5 months agoMicrosoft puts the squeeze on onmicrosoft.com freeloadersMicrosoft will throttle emails from tenants using onmicrosoft.com, limiting to 100 external recipients per organization per 24-hour rolling window and requiring custom domains.