I have the following route: <route> <from uri="direct:start"/> <enrich strategyRef="CurrentEnrichStrategy"> <simple>direct:enrich</simple> </enrich> <marshal ref="mimemultipart"/> <to uri="log:loggingmimemessage"/> </route>
This route works as follows: 1. Enrich: Adds the body from the enrich endpoint as attachment: 2. Marshal: The exchange with attachment is marshalled to a MimeMessage using MimeMultipartDataFormat This worked until 4.9.0, but from 4.10.0 I don't always get the mimemessage. When I use an InOut exchange pattern the resulted exchange has the right has headers, but the body is still from the original exchange. I can work around this by changing the route to InOnly before the enrich step. <route> <from uri="direct:start"/> <setExchangePattern pattern="InOnly"/> <enrich strategyRef="CurrentEnrichStrategy"> <simple>direct:enrich</simple> </enrich> <marshal ref="mimemultipart"/> <to uri="log:loggingmimemessage"/> </route> The above route gives the intended output (reply). I saw in the release notes/what's new that there are some changes with attachments, could that be the cause? Raymond Link to the custom AggregateStrategy: https://github.com/assimbly/runtime/blob/develop/dil/src/main/java/org/assimbly/dil/blocks/beans/enrich/attachment/AttachmentEnrichStrategy.java Link to used MimeMultipartDataFormat: https://github.com/apache/camel/blob/main/components/camel-mail/src/main/java/org/apache/camel/dataformat/mime/multipart/MimeMultipartDataFormat.java