I am sending a file using the MIME tab of the SOAP operator. I can see the message being sent using the membrane proxy. By default, only are included the Content-Type and the Content-ID. Is it possible to add more MIME headers like e.g. Content-Transfer-Encoding?
Thanks in advance for your help.
There does not seem to be a way to add additional MIME headers. These are the only available fields and there is not a way to get at the code to manually manipulate it:
I would suggest opening an "idea" here on the communities so that it can be evaluated for an enhancement to a future release.