linux as mail server

[Rahul Garg]

well, the problem description -   I have configured my RedHat7.1linux m/c as file server(samba),internal DNS server with domain name say linuxdomain and as gateway server connected thru modem (ppp)with the internet.All is working fine.Client m/cs are windows 98 with Outlook Express as mailuseragent   Now, I want to make my linux m/c as mail server with 98 clients be able to access mail  thru outlookexpress. I am using sendmail as MTA. I have added  the following  in /etc/mail/sendmail.mc  ......  MAILER(smtp)dnl MAILER(procmail)dnl define(`confCON_EXPENSIVE', `True') define(`confDOMAIN_NAME', `linuxdomain')######linuxdomain is the domain of linux server define(`SMTP_MAILER_FLAGS', `e') define(`SMART_HOST', `relay.abc.com')#########relay.abc.com is the outgoing SMTP mailserver define(`confBIND_OPTS', `-DNSRCH -DEFNAMES') define(MAIL_HUB', `linuxtest')##linuxtest is the name of linuxserver DAEMON_OPTIONS(`Port=smtp,Addr=127.0.0.1, Name=MTA') DAEMON_OPTIONS(`Port=smtp,Addr=ipaddressoflinuxserver, Name=MTA') MASQUERADE_AS(`linuxdomain') in /etc/mail/access   localhost.localdomain          RELAY localhost                                  RELAY 127.0.0.1                                    RELAY ipaddressoflinuxserver      RELAY in /etc/mail/local-host-names linuxdomain            ##note linuxdomain is an internal domain. then, m4 /etc/mail/sendmail.mc > /etc/sendmail.cf then restart.   i have also made a file .fetchmailrc in /root ##this is what i have read and is for fetching mails but is this correct??i doubt.   poll xyz..com with protocol pop3 user 'username' with password 'pswd' is  * here smtphost ipaddressoflinuxserver ##xyz.com is the outgoing pop3mailserver please do give the more changes i need to make and to correct the existing files so that i can run mailserver and access mails on windows clients. Any good references regarding configuring mail server for  newbies like me.   And also how can i access mails in linux .utility like outlook Express??   Thanks, Rahul.