Problem

   The setting that controls decomposition and internal processing of the message for SMTP policies overrides the setting for Secure Collaboration (SC) policies. If a file is uploaded via DropZone or Secure Mailbox and exceeds the decomposition limit above (by default 100 MB) will skip SC policy scan.

Resolution

   Increase the decomposition size value (by default 100 MB):

to be equal to the corresponding setting for SC traffic (by default 256 MB):

NOTE:   Only applicable on Axway Appliance (hardware installation).