Mimefilter is good too, it is lightweight. I installed and played with both and eventually went with demime because (a) it is more agressive in terms of yielding just plain text - it doesn't "respect" multipart/mixed and try to preserve it with just selective pruning, it flattens it; and (b) if the poster sends ONLY HTML with no plain text (a sad feature of a couple of mailers), demime does a quick&dirty text render. For other applications not involving human readable mailing lists, I would probably prefer mimefilter. Another popular solution is Stripmime. http://www.phred.org/~alex/stripmime.html
