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Components overview

The following figure shows the high-level component relationships in the Messaging Architecture. Dashed boxes indicate components that can be developed by third-parties.

Messaging Architecture Overview

The following list summarises the components. The remainder of this topic explains each of them in detail.

Note that no lower-level communication components are shown, as the Messaging Architecture is designed to be independent of any particular communication protocol. Instead, communications libraries are accessed as needed by Server-side MTMs. In ER5, the SMTP and POP3 MTMs use TCP/IP, while the SMS and Fax MTMs use the EPOC Telephony Server (ETel).

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