Hi Sjaak, While sending data to solace you can use http connector and set the properties like mentioned above.
While receiving messages from Solace you can configure JMS connector as listener. If your listener process fails Solace will try to redeliver the message 5 times(if max re-delivery property on solace queue is configured as 5). After all the attempts are exhausted messages will be moved to DMQ.
You need to enable transactions option on JMS connector else solace will treat the message as Unacknowledged in case of process failure.