1.First Step is to install postfix. // Its MTA
yum install postfix
The main configuration file is located at /etc/postfix/main.cf. Edit the file and make sure you change the following lines with your domain name.
myhost= mail.example.com
mydomain = example.com
myorigin = $mydomain
inet_interfaces = all
mydestination = $myhostname, $mydomain
2.yum install cyrus-sasl //Denying Relay
To enable SASL authentication open /etc/postfix/main.cf and add the following lines
smtpd_sasl_auth_enable = yes
smtpd_recipient_restrictions = permit_mynetworks,permit_sasl_authenticated,reject_unauth_destination
smtpd_sasl_security_options = noanonymous
smtpd_sasl_type = dovecot
smtpd_sasl_path = private/auth
3. Install Dovcot // POP3/IMAP Server
Open the dovecot config file /etc/dovecot.conf and make the following changes. You may need to comment or uncomment certain lines
protocols = imap imaps pop3 pop3s
Look for the line auth default and make these changes. Be careful with the lines as they are heavily commented out.
auth default {
mechanisms = plain login
passdb pam {
}
userdb passwd {
}
socket listen {
client {
path = /var/spool/postfix/private/auth
mode = 0660
user = postfix
group = postfix
}
}
}
4. Install Squirrelmail //Webbased email for handy
yum install squirrelmail
To setup the squirrelmail under apache, open /etc/httpd/conf/httpd.conf and insert the following lines
Alias /squirrelmail /usr/local/squirrelmail/www
<Directory /usr/local/squirrelmail/www>
Options Indexes
AllowOverride none
DirectoryIndex index.php
Order allow,deny
allow from all
</Directory>
The squirrelmail configuration utility is located in /usr/share/squirrelmail/config/conf.pl
Run the configuration utility and set the server settings to SMTP and change your domain name to example.com
5.Start Services
/etc/init.d/postfix start
/etc/init.d/dovecot start
/etc/init.d/saslauthd start
service httpd restart
5.Create Local users
Just create a localuser with adduser
adduser rahul
and update the password of rahul using
passwd rahul
6. Squirrelmail is available at www.yourdomain.com/webmail
You are Done.... For any queries, drop a comment.
