From the course: Microsoft Exchange Server 2019: Administration
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Understanding transport architecture - Microsoft Exchange Server Tutorial
From the course: Microsoft Exchange Server 2019: Administration
Understanding transport architecture
- [Instructor] Let's take a look at the architecture of email flow, so an administrator can make the best decisions on how to proceed with these tools when there is an issue. The transport pipeline consists of the following services. The front end Transport service on Mailbox servers. This service acts as a stateless proxy for all inbound and outbound external SMTP traffic for the Exchange 2019 organization. The front end Transport service doesn't inspect message content, doesn't communicate with the Mailbox Transport service, and doesn't queue any messages locally. The transport service on Mailbox servers is virtually identical to the hub transport server role in Exchange Server 2010. The Transport service handles all SMTP mail flow for the organization, performs message categorization and performs message content inspection. Unlike Exchange 2010, however, the Transport service never communicates directly with the Mailbox databases. That task is now handled by the Mailbox Transport…
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