Uuencoding and Posting

gnus-uu-post-include-before-composing: Non-nil means that gnus-uu will ask for a file to encode before you compose the article. If this variable is t, you can either include an encoded file with C-c C-i or have one included for you when you post the article.
gnus-uu-post-length: Maximum length of an article. The encoded file will be split into how many articles it takes to post the entire file.
gnus-uu-post-threaded: Non-nil means that gnus-uu will post the encoded file in a thread. This may not be smart, as no other decoder I have seen is able to follow threads when collecting uuencoded articles. (Well, I have seen one package that does that—gnus-uu, but somehow, I don't think that counts...) Default is nil.
gnus-uu-post-separate-description: Non-nil means that the description will be posted in a separate article. The first article will typically be numbered (0/x). If this variable is nil, the description the user enters will be included at the beginning of the first article, which will be numbered (1/x). Default is t.