Cant download mails

Hi All I am using Suse Linux Enterprise Server. I have configured squid to share my internet connection. On client machine I am able to browse net but when I configure kmail or evolution on client machine I am not able to send or receive mails. I tried with Fedora Core1&2, I even tried with Redhat 8. But the same problem. Don know how to solve this problem. With Rgrds Kanak kanak.patel@linsoftindia.org mailto:kanak.patel@linsoftindia.org