S/MIME provides a way to send secure MIME data through encryption, digital signatures and compression. Many email programs support S/MIME to send secure messages. S/MIME can also be used in other protocols. For example, AS2 builds on S/MIME to provide a secure protocol on top of HTTP.

iWay Service Manager components related to S/MIME are listed and described in the following table:

Component	Description
nAS2	AS2 secure messaging protocol.
XDSMIMEPackerAgent	A service to create S/MIME messages.
XDSMIMEUnpackerAgent	A service to unwrap and verify S/MIME messages.
XDSmimePreParser	A preparser to unwrap and verify S/MIME messages.
XDNewSMIMEPE	A preemitter to serialize the document and attachments to S/MIME.

For more information on these components, see the iWay Service Manager Component and Functional Language Reference Guide.