hello everyone, i have this feeling that this has been asked b4 already but i cant locate it in the archives. anyway : does anybody have any URL's or docs w/ talks on how to build a mail server (both Exim and Sendmail are OK w/ me) with more than 65,000 users ? i.e., what are the available methods (and what are the best ones) of having mail users w/o having them on /etc/passwd. thanks in advance, chad