Periodically, when I am uploading a file, whether it is a RAR or 7z file, I get an Usenapp error message:
Post Error. Posting Failed. Article refused E3
What causes this error and how can I resolve it?
That message comes straight from your news server. I have no idea what it means.
Sometimes it is because the post is too large, Astraweb for example has very small post sizes.