foreign mail system

Definition of foreign mail system in The Network Encyclopedia.

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What is Foreign Mail System?

A mail system that belongs to a different company than your own and that might also be of a different type. An example could be a public X.400 messaging system in Europe or the Internet’s Simple Mail Transfer Protocol (SMTP) mail system. The term “foreign mail system” usually refers to a mail system other than Microsoft Exchange Server. You can establish connectivity between an Exchange organization and a foreign mail system by installing and configuring an appropriate connector on an Exchange server in your organization.

Examples include:

  • Using the Internet Mail Service to connect an Exchange organization to the SMTP mail system on the Internet
  • Using the X.400 Connector to connect an Exchange organization to a public X.400 messaging network such as those common in Europe