====== Exim4 - Install Exim4 Complete ======

Our mail server supports virtual accounts using the MySQL database (enable set like MySQL, I spoke here ), SMTP-authentication and secure connection TLS / SSL.

To use TLS / SSL create a certificate. 

<code bash>
mkdir -p /etc/ssl/certs 
cd /etc/ssl/certs 
openssl req -x509 -newkey rsa:1024 -keyout mail.pem -out mail.pem \ ? -days 9999 -nodes
</code>

<WRAP alert>
Less than 9999 days exist before the Unix / Linux 32-bit date wrap-around occurs.
</WRAP>

<code bash>
Country Name (2 letter code) [CA]: 
State or Province Name (full name) [Quebec]: 
Locality Name (eg, city) [Montreal]: 
Organization Name (eg, company) [Open Network Architecture]: 
Organizational Unit Name (eg, section) [Internet Department]: 
Common Name (eg, YOUR name) []: 
Email Address []:
</code>

Fills as your heart desires (because you're not going to pay for the certificate), except for the string **Common Name (eg, YOUR name) []**.  Here you need to enter the name of our server:

<code bash>
Common Name (eg, YOUR name) []: sharewiz.net
</code>

In the directory **/etc/ssl/certs** appeared certificate file mail.pem, which in the future we will use for the secure connection to our mail server.  We carry on this file two more opertsii: 

<code bash>
chmod 440 /etc/ssl/certs/mail.pem 
chgrp mail /etc/ssl/certs/mail.pem
</code>

The certificate is over, now the loans directly to Exim.

For Exim we need a non-privileged user that belongs to the group mail.  Create it.

<code bash>
pw useradd exim -c "Exim" -d /var/spool/mqueue -s /sbin/nologin -g mail 
exit 
cat /etc/passwd | grep exim -d /var/spool/mqueue -s /sbin/nologin -g mail 
exit 
cat /etc/passwd | pw useradd exim -c "Exim" -d /var/spool/mqueue -s /sbin/nologin -g mail 
exit 
cat /etc/passwd | grep exim 
pw useradd exim -c "Exim" -d /var/spool/mqueue -s /sbin/nologin -g mail 
exit 
cat /etc/passwd | grep exim exim:*:1003:6:Exim:/var/spool/mqueue/:/sbin/nologin mqueue /:/sbin/nologin
</code>

The last command we find that your account has exim uid = 1003, and gid = 6.  These data we need in the configuration.

Pick the latest version of **Exim** (as of this writing - 4.50) from site www.exim.org.  Do not take the earlier version.  This is due to the fact that, since version 4.50, previously separately existing patch **exiscan-acl** is integrated in the source code.

<code bash>
cd $HOME/install 
links www.exim.org 
tar xzfv exim-4.50.tar.gz 
cd exim-4.50 
cp src/EDITME Local/Makefile
</code>

Edit the Local/Makefile 

<code bash>
$ ee Local/Makefile
</code>

changing

<file bash Local/Makefile>
  BIN_DIRECTORY = /usr/exim/bin
  on 

  BIN_DIRECTORY = /usr/local/exim/bin
  Here we specify the installation path Exim executable files. 
 
  CONFIGURE_FILE = /usr/exim/configure
  on 

  CONFIGURE_FILE = /usr /local/exim/configure
  Here we specify the name and path of the configuration file. 
 
  EXIM_USER =
  on 

  EXIM_USER = 1003
  # EXIM_GROUP =
  on 

  EXIM_GROUP = 6
  Remember I talked about the uid and gid?  Right now we need them.  Please enter a numeric user and group IDs on whose behalf will run Exim. 

  SPOOL_DIRECTORY = /var/spool/exim
  on 

  SPOOL_DIRECTORY = /var/spool/mqueue
  Here we specify the name of the spool-directory. 

  # SUPPORT_MAILDIR = yes
  on 

  SUPPORT_MAILDIR = yes
  Here we include support for Maildir. 

  # LOOKUP_MYSQL = yes
  on 

  LOOKUP_MYSQL = yes
  Here we include support for MySQL. 
</file>

To find the path to library files and MySQL headers, execute: