Some time we are facing problem to send mail using Email Client Software (Like Outlook)form different ISP/Network. To avoid this kind of inconvenience need to configure authentication from server.  Step: 1 Ø   #vim /etc/dovecot/…

1. Install apache webserver  # apt-get install apache2  # apt-get install php5 ​​ 2. Now we will download squirrel mail tar.gz file   # wget http://sourceforge.net/ projects/squirrelmail/files/ stable/1.4.21/squirrelmail-1. 4.21…