Looking for mime types for firefox/linux

[eluser]überfuzz[/eluser]
I'm in the middle of testing a script that allows user to send an attached file with a form2mail. It seems to be working OK in all set-ups but one. If I'm trying to send a textfil.doc from a linux/firefox browser the file.doc is not accepted. I'm pretty sure a OpenOffice dude never ever will use *.doc, but I like to fix this even so.

Is there some secret mime types out there that I'm not aware of? Does anyone have a list?