Very straightforward and intuitive way to redirect your posts based on category to another website.
Redirect Category will perform HTTP 301 redirections on requests to posts belonging to categories of your choice.
Most important requirements.
Before you select existing categories for redirection, it is recommended that you create a test category and study the functionality of the plugin to make sure it meets your specific requirement.
Once turned on, it is recommended to keep the plugin turned on till all relevant search engines have updated their indexes for your redirected posts.