Outlook plugin V3 and V4 issues with SecuritySuite (Sugaroutfitters)

Hello,

We are experiencing the following issues when archiving email with attachments from Outlook using V3 (and V4):

  1. Archiving does send both the email and its attachments to SuiteCRM. GOOD
  2. The email is processed properly using the SecuritySuite settings. GOOD
  3. But, the attachment is NOT using SecuritySuite.

Results:
A. only administrators can see the attachment in SuiteCrm
B. normal users, regardless of their SecuritySuite rights, can not see the attachment. But they can see the corresponding email

Question: is this a bug or …?

Thanks in advance
Maarten