Using Azure Email Communication Service to Send Messages
If you’re looking for an email service capable of handling large volumes of email to external recipients, Microsoft will propose Email Communication Services (ECS). Built on top of Exchange Online, ECS shares some characteristics with the High Volume Email (HVE) solution. After testing both, HVE is probably a better solution if you have a Microsoft 365 tenant.
https://practical365.com/ecs-email-communication-services/
If you’re looking for an email service capable of handling large volumes of email to external recipients, Microsoft will propose Email Communication Services (ECS). Built on top of Exchange Online, ECS shares some characteristics with the High Volume Email (HVE) solution. After testing both, HVE is probably a better solution if you have a Microsoft 365 tenant.
https://practical365.com/ecs-email-communication-services/ Read More