I missed the first question on this so this may not answer the
netscape quetions, but I use procmail and Netscape together but
not on the same machine.
All my mail goes to a unix box with procmail running. Then I
have procmail recipies (I use Gregory Sutter Junkfilter)
Then regardless of the content, I forward all mail to my POP
server which netscape picks up and puts in various folders for
me on that end based on the headers that I add from procmail.
One interesting problem I ran into was that somehow a spammer
once got hold of my POP account address (which I hoped to keep
secret)
I got around this by letting procmail add a unique header to every
email it processes. Then I did a netscape filter looking for that
header. If it was NOT there - then I assume it is SPAM going direct
to my POP account.
This has worked very well. Here is the recipe I used to get this
to work: (Thanks to this list for helping me with this a few months
ago.)
#this adds a flag to all mail processed by procmail
:0 f
| formail -a "X-PROCMAILPROCESSED: YES"
toddl