Solution:

First, be sure that all the groups you are posting to are appropriate for your article. Second, pick one of the groups to receive followup articles. Specify this group in the "Followup-To:" header line, and mention in your article that you have directed followups to that group. Third, publish your article in a single posting operation, specifying all the groups on the "Newsgroups:" header line, rather than posting a separate copy to each newsgroup. By posting a single article to all the newsgroups you wish to reach, the news software is able to transfer a single copy. Furthermore, users with "smart" newsreaders will see the article only once. Making separate postings of your article for each newsgroup you wish to reach tends to annoy readers rather than emphasize the message content and also wastes computational resources.

Feel free to submit a request for help for any of the following reasons: