primarysmtp

The tag primarysmtp on WindowsForum.com covers discussions about the primary SMTP address in Microsoft 365 environments, with a focus on the MOERA (Microsoft Online Email Routing Address) throttle. This throttle limits outbound email sent from onmicrosoft.com addresses to 100 external recipients per organization per day, affecting tenants using the default domain for production sending. Topics include the enforcement timeline, impact on trial tenants, and best practices for configuring primary SMTP addresses to avoid throttling. The tag is relevant for IT administrators managing email routing and compliance in Microsoft 365.