I am trying to send email inside a loop. The email address and the main content to send can be controled by flow variables, however, the attachedURLs in flow variables setting panel only accept the integer value, which make it impossiable to attach file dynamically.
Good question. Like in some other parts of KNIME, this is how we represent an array of obejects (in this case attachements) in a settings dialog. If you specify some default attachement, you can then override the file path. Unfortunately, if you need a variable number of attachemnts you will need to specify default value for the maximum number of attachements that you wish to be able to send. Hopefully it is not too many!