No error messages at all... there is just the usual dialogue box which requires me to manually accept the DCC, or it times out.
I am not sure what you mean by "ignoring the file type/sender"... I may well be overlooking something, but being ignorant about the ins and outs of mirc, I am not even sure what you are referring to here. Where do I need to look for those settings, and what should they be?
Thank you for your assistance.