Postfix Mail Server on RedHat 6 /CentOS 6

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In this setup:
IP address of server = 161.101.234.62
Hostname = mail
Domain Name = mylab.local
Full Computer name (FQDN) = mail.mylab.local

Note: Make sure DNS Server is properly configured.

Install Required package:
yum install postfix dovecot squirrelmail http  -y

# vim  /etc/postfix/main.cf
inet_interface   =   all
# inet_interface   =  localhost
mydestination =  $myhostname,  localhost.$mydomain, localhost,  $mydomain
home_mailbox =  Maildir/


vim  /etc/dovecot.conf
protocols  =  imap  imaps  pop3  pop3s
mail_location  = maildir:~/Maildir
pop3_uidl_format  =  %09Xu%09Xv
imap_client_workarounds = outlook-idle  delay-newmail  netscape-eoh
pop3_client_workarounds = outlook-no-nuls    oe-ns-eoh

vim  /etc/squirrelmail/config.php
$domain                       = ‘mylab.local’;
$imapServerAddress    = ‘161.101.234.62’;
$smtpServerAddress    = ‘161.101.234.62’;
$default_folder_prefix   = ‘Maildir/’;

service  postfix  restart
service   dovecot   restart
service httpd  restart

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