Specify X.400 Message Formats
An X.400 message contains a body part and a header. The body part makes up the text of the message, and the header contains address, routing, and transport information. You can specify the body part type to use for the content of a message. This body part type must be supported by the foreign system and primarily affects outbound messages. When you choose a body part type, you choose the alphabet used in the text; for example, body part type IA5 includes international alphabet number 5 (suitable for Swedish, Norwegian, German, and western European characters) and body part type International Standards Organization (ISO) 6937 includes a set of 333 characters made up of Latin script and non-spacing diacritical marks. Exchange X.400 connectors can support many text body part standards, ensuring that mail from foreign language messaging systems have a majority of their characters transferred in a displayable format.
X.400 connectors can also support a variety of file attachments as binary body parts:
Exchange converts other X.400 body parts to messaging application programming interface (MAPI) binary attachments.
To specify X.400 message formats:
Note If the remote system is not an Exchange server, do not select the Allow Exchange Contents option.