Receive connectors

SMTP has provided the foundation for Exchange’s transport system since Exchange 2000 switched from X.400. Exchange has long incorporated SMTP connectors to allow bidirectional email communications with other SMTP-based messaging systems, so the transition to a pure SMTP environment was always on the cards once Internet protocols grew in popularity and replaced X.400 and X.500 as the de facto standards for interoperability. Exchange divides its SMTP communications into receive and send connectors. Receive connectors accept incoming messages from other SMTP servers, including Exchange servers, or POP3 and IMAP4 clients that use SMTP to send their messages. When you install the hub transport role on a server, the installation procedure ...

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