At 11:51 PM 7/10/2001, you wrote: >Hi list, > >how can I set up sendmail on our Linux (RedHat) box to allow relaying for >a certain network X.Y.Z.0 but deny it for a few IPs from the same network, >eg. X.Y.Z.153? Depending on your Sendmail setup. I use the /etc/mail directory and add the allowed IPs to the relay-domains. (Don't forget to restart Sendmail.) You should read up on Sendmail Relaying here: http://www.sendmail.org/tips/relaying.html Don't forget the FAQ here: http://www.sendmail.org/faq/ --- Anthony Baratta President Keyboard Jockeys Blatant Plug: Cool Jazz for a hot summer, http://LisaMarie.Baratta.com