We have daily-Jobs to send GW-Mails with an EXCEL-Attachment to an Oracle System. This Oracle-System works with IMAP. (GW - System already is configured for this).

If we send this mail from outside (other external GroupWise or Exchange-system), the mail is arriving without a problem and the excel-file will be processed normally.

If we send this mail internal over our postoffice, the Excel-file arrives as "ATT00005.XLS".

The difference in the EML - File (Source-code) is:

from sending inside mail: (no filename)

Content-Type: application/vnd.ms-excel
Content-Transfer-Encoding: base64
Content-Disposition: attachment; filename=""

From other external systems you will see the filename.

We tried to find help to open a service request, but the answer was, that the problem cannot be from GW-side.

Why the email is arriving correct from a outside system and not from sending internal over our postoffice.

Thank you for your ideas.