Upload filetype not allowed??

[eluser]Unknown[/eluser]
As far as RTF goes, this can be a tricky mime-type to deal with. In general, the mime-type for RTF is 'application/rtf' and NOT 'text/rtf' (according to w3schools and good ol' M$). So right off the hop, Codeigniter has a possibly incorrect mime-type listed.

HOWEVER, some products stamp the mime-type as 'application/msword' for RTF files. We had to change the 'rtf' entry in the mimetypes array (located in /system/application/config/mimes.php) to be 'application/msword' to get our users' RTF files uploading correctly. This may have something to do with the way the RTF file type is defined on their Windows XP computers, I am not 100% certain.

WHEN IN DOUBT, install the Live HTTP Headers Add-On in Firefox, it will let you know what the browser is thinking in terms of what the file type is that is being uploaded.