I have received a request from another node that is running the Crosswell Mailer 2.07. It seems that if the number of RCPT TO's in a mailing exceed about 600, it causes problems which result in lots of lost mail for that posting. I know I can fix this problem by changing Mail-Via= from DIST to DIRECT, but at the cost of increased overhead at nodes all along the route. Is there a way that I can tell Listserv to limit the number of RCPT TO's in a single mail envelope? If not, what is the best way to fix this peoblem?