I want to create a rule through the GroupWise API that trashes incoming
mails with certain attachment names.

In the CreateRule-Screen there are tons of "filterable" fields avialable,
both user defined and system internal, one of them is attachments.

However, with the FilterSetText-Token it seems I can only access a few
predefined fields, and the user-defined fields through the

How do I get the other internal fields, like "attachments"?