My client recently brought their e-mail in house using Exchange 2003. Since the time of the conversion they have been having issues with some of their clients not being able to receive their invoices. They
use a thirdy party program called RBS GoChart 2000 to create and e-mail invoices in .pdf format. However some of the clients receive the attachment as winmail.dat. This is also true if the client in question is checking the message from a tablet
or smartphone.
I have attempted to change the way the message sends to text only, by changing the preferences in Outlook, and the message type settings in Exchange. What I find as odd is that if the message containing the attachment is
forwarded to the Administrator mailbox, and then forwarded to the client in question, the attachment is viewable, and that the attachment is always viewable if sent to my own Exchange server. As yet I have not been able to find any correlation between the
clients are receiving winmail.dat attachments, and those that receive the attachment as a .pdf. Any suggestions would be greatly appreciated.