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I'm using Redhat 9 Linux, now i want to make it a mail server (like exchange server in windows server envoirnment). So could u suggest me which mail server package is suitable, stable and also reliable in linux envoirnment and what are the steps for configure it. Thanx in advance
First of all, Red Hat 9 has been out of support for several years, so it should not be used for systems on the public Internet. Red Hat now offer Fedora Core and Red Hat Enterprise Linux.
In order to provide a complete mail facility you need to configure several pieces of software, which are available on all Linux distributions: an SMTP service, an IMAP service, a spam filter, and a Webmail application.
You do not need to be a full groupware server (calendaring, contacts, etc) in order to send & recieve email. Generally there are two components to an email server:
MTA (this is for sending and recieving email) and (for lack of a better term) and email retrieval server (that allows users to open messages that are stored in their mailbox on the server). Examples of an MTA would be Sendmail, Postfix, Exim, and Qmail. Examples of email retrieval servers are Dovecot, Cyrus, Qpopper, etc...
I would also say if you need stability install debian sarge stable with postfix and courier-pop , courier-pop-ssl , courier-imap but also dovecot.Postfix is a powerfull MTA follow postfix.org to configure it . It has plenty of options and the 6 or 7 you find in the default conf could be right enough .
happy debian !