http://www.newton-inc.com/dev/techinfo/qa/qa.htmItemCompleted. Why is this problem occuring?ItemCompleted. To work around this, you should check to make sure the folder exists before calling ItemCompleted. If it does not exist, then set the transport's 'outboxFiling preference to nil. Here is a code example:
// This code assumes that the current receiver (self) is your transport
if NOT GetFolderStr( :GetConfig( 'outboxFiling ) ) then
:SetConfig( 'outboxFiling, nil );