Saturday, 15 March 2014

Configure Squirrelmail

Posted by Unknown on 20:21 linux 1 comment

Prerequisites

Http should be installed.

If you want to keep SELinux on, then enter the following command in Terminal:

# togglesebool httpd_can_network_connect

Make changes in this file for Http.

# vi /etc/sysconfig/iptables

[...]

-I INPUT 1 -p tcp --dport 80 -j ACCEPT

-I INPUT 1 -p tcp --dport 443 -j ACCEPT

[...]

Install Postfix

Let us install postfix package using the command:

# yum install postfix -y

Configuring Postfix

Edit /etc/postfix/main.cf,

# vi /etc/postfix/main.cf

find and edit the following lines:

Line no 75 - Uncomment and set your mail server FQDN

myhostname = server.stpi.in

Line 83 - Uncomment and Set domain name

mydomain = stpi.in

Line 99 - Uncomment

myorigin = $mydomain

Line 116 - Set ipv4

inet_interfaces = all

Line 119 – Chech it should be for all

inet_protocols = all

Line 164 - Comment

#mydestination = $myhostname, localhost.$mydomain, localhost,

Line 165 - Uncomment

mydestination = $myhostname, localhost.$mydomain, localhost, $mydomain

Line 264 - Uncomment and add IP range (in this only these network can access your website)

According to me let it remain as comment.

#mynetworks = 192.168.1.0/24, 127.0.0.0/8

Line 419 - Uncomment

home_mailbox = Maildir/

Save and exit the file. Start/restart Postfix service now:

# service postfix restart

# chkconfig postfix on

Testing Postfix mail server

First, create a test user called “vishu“.

# useradd vishu

# passwd vishu

Access the server via Telnet and enter the commands manually shown in red colored text.

# telnet localhost smtp

Trying ::1...

Connected to localhost.

Escape character is '^]'.

220 server.stpi.in ESMTP Postfix

ehlo localhost #type this command #

250-server.stpi.in

250-PIPELINING

250-SIZE 10240000

250-VRFY

250-ETRN

250-ENHANCEDSTATUSCODES

250-8BITMIME

250 DSN

It means its working.

Installing Dovecot

Dovecot is an open source IMAP and POP3 mail server for Unix/Linux systems. To install:

# yum install dovecot

Configuring Dovecot

Edit the file /etc/dovecot/dovecot.conf file,

# vi /etc/dovecot/dovecot.conf

Line 20 - umcomment

protocols = imap pop3 lmtp

Edit file /etc/dovecot/conf.d/10-mail.conf file

# vi /etc/dovecot/conf.d/10-mail.conf

Line 24 - uncomment

mail_location = maildir:~/Maildir

Edit /etc/dovecot/conf.d/10-auth.conf

# vi /etc/dovecot/conf.d/10-auth.conf

line 9 - uncomment

disable_plaintext_auth = yes

Line 97 - Add a letter "login"

auth_mechanisms = plain login

Start Dovecot service:

# service dovecot start

# chkconfig dovecot on

Testing Dovecot

It’s time to test Dovecot configuration. Enter the following command in Terminal:

# telnet localhost pop3

Enter the commands manually marked in red color:

Trying ::1...

Connected to localhost.

Escape character is '^]'.

+OK Dovecot ready.

user vishu # log in as user vishu #

+OK

pass vishu # input user password #

+OK Logged in.

quit

+OK Logging out.

Connection closed by foreign host.

As you see in the above, Dovecot is working!

Working with mail in command modes little bit difficult for us. So we will install a webmail client called Squirrelmail to send/receive emails via a web browser.

Installing Squirrelmail

# tar xvf squirrelmail-webmail-1.4.22.tar

Configuring Squirrelmail

Navigate to /usr/share/squirrelmail/config/ directory and run the command conf.pl:

# cd /usr/share/squirrelmail/config/

# ./conf.pl

This screen will come

Type 1 to make changes in organization Preferences

After pressing 1 this screen will come.

Type 1 to change Organization Name.

Server Setting

Folder Setting

And other should be remain same.

Create a squirrelmail vhost in apache config file:

# vi /etc/httpd/conf/httpd.conf

Add the following lines at the end:

Restart the Apache service:

# service httpd restart

Access Webmail

Now navigate to http://ip-address/squirrelmail or http://domain-name/squirrelmail from your browser. The following screen should appear. Enter the username and password of the user.

By :- Vishal Sharma