I developed a program that sends emails (with attachments to clients). Now, some of the clients are asking what they should do with the emails with UNKNOWN_PARAMETER_VALUE.DAT
? I'm quite sure that I've not sent attachments with those names. Only a few of the clients have received attachments with this. Is this a virus? If not, is this a MIME problem (FYI, some attachments have Chinese filename, I'm not sure if this might be a probable cause).