pipe problem

How can I get exim to not split the "local_part" into arguments? I tried
"original_local_part" and that didn't work.

I realize the insecurity of /bin/sh, but I have local users who use the
procmail line:


"|IFS=' ' && exec /usr/local/bin/procmail -f- || exit 75"

I read through the archives and Philip essentially said "change the
procmail line". This isn't an option here.