Squirrelmail spam filtering

Yes, several of them do, what I was looking for is which one is the best to use. I see four plugins that talk of SA in one form or another, their descriptions are minimal, and not one of them does everything. My users are asking for basically hotmail, a junk mail folder and the ability to target what is/ is not junk mail and for that junk folder to auto purge on a set schedule.

All I see at squirrelmail is a list of plugins and how may times they were downloaded. I want to know user experience, pitfalls, installation issue, compatibility, etc. Can mulitple plugind be used? Can I use Amvis New, BayesSpam, and Seive Mail Filters at the same time, will they overlap each other? what does this board generally recommend?