I have no AttachmentFilterEntry for .zip, but encrypted .zip-files were rejected. Unencrypted .zip files arrives the mailbox. The problem only occurs only, when the zip-files came from unix - with windows-generated .zip there is no problem. When i disable the Attachment Filter Agent all is OK - but i have no Attachment-filter functionality.
I have updated the Edge Server to Exchange Server 2013 CU5 - no luck.
How can i receive encrypted zip-files without completely disable the Attachment Filter Agent ?
Thanks
Jens Nitschke