Tomorrow SERGIE said: > > Need your help guys very much... > > I have decided to switch to postfix from sendmail and now have the problems > which do not allow my system work as it should work. Smart move. But don't leap before looking. And you will be rewarded. > > Fedora Core 4. Huh? This is outdated OS. > > 1. I must be able to create mail users with postfix which are not UNIX users. > I don't know how to do that, because local_recipient_maps must be empty (see RTFM at http://www.postfix.org/VIRTUAL_README.html for your options. > > 2. For incoming mail for users which COULD NOT be found in the postfix > database, postfix must relay such messages to another SMTP server, instead of Do no do this. Be a good netizen and learn how to reject invalid recipinets at your MX. And how well-meaning postmasters such as yourself fall into this trap. http://www.postfix.org/BACKSCATTER_README.html Both of the above links and many more rich and helpful info can be found in the upstream sources or here: http://www.postfix.org/documentation.html Enjoy! ../C