This is a short tutorial to install Postfix, Courier-authlib Dovecot and MailScanner in Opensuse 11.1 x86_64 O/s
This tutorial also working for other x86_64 o/s or 64 bit O/s

What is Dovecot ?

Dovecot is an open source IMAP and POP3 server for Linux/UNIX-like systems, written with security primarily in mind. Dovecot is an excellent choice for both small and large installations. It's fast, simple to set up, requires no special administration and it uses very little memory.

What is MailScanner ?

Here is a simple steps to disable Sendmail on your FreeBSD server,

You can try these two methods:

1. If you don't want to restart your server, you can try this command

[code]$/etc/rc.d/sendmail stop[/code]

2. You can also disable Sendmail at the startup config file, you'll need to change the following 4 lines in /etc/defaults/rc.conf

[code]$nano /etc/defaults/rc.conf 

## change below to NO

sendmail_enable="NO"
sendmail_submit_enable="NO"
sendmail_outbound_enable="NO"
sendmail_msp_queue_enable="NO"