Wildcards in "Setup / General Settings / Support / Allowed File Attachment Types".
Please add wildcards support to "Setup / General Settings / Support / Allowed File Attachment Types".
This is very important because we cannot predict all possible filetypes from our customers, and some of them are too stupid even for adding ".dat" to disallowed filenames. So we need possibility to set allowed types simply to ".*" or ".???" (and yes, we know that's completely insecure, but this is better than ugly/angry/evil/lost client).
See also topic on your forum: http://forum.whmcs.com/showthread.php?86162-Client-tickets-how-to-allow-all-file-attachment-types