The plain text version of the message is received and it contains an attachment that has a generic name such as ATT00008.dat or ATT00005.eml. In this case, the client is unable to recognize either the TNEF part of the message or the Winmail.dat file ...
To enable TNEF, selectRich Text. Resolve TNEF issues Use the relevant solution for each of the following issues: Problem: Recipient receives theWinmail.datattachment. Solution: Disable TNEF (globally or per-message). Problem: Recipient receives theATT00001.DATattachment....