Hello,

	as dovecot can have many different authentication backends and exposes 
 itself as authentication source trough dovecot-auth client socket (which example
 configuration can be found bellow). This module enables you to authenticate
 users against it using basic authentication.

################################################################################
  socket listen {
    #master {
      # Master socket provides access to userdb information. It's typically
      # used to give Dovecot's local delivery agent access to userdb so it
      # can find mailbox locations.
      #path = /var/run/dovecot/auth-master
      #mode = 0600
      # Default user/group is the one who started dovecot-auth (root)
      #user =
      #group =
    #}
    client {
      # The client socket is generally safe to export to everyone. Typical
      # use
      # is to export it to your SMTP server so it can do SMTP AUTH lookups
      # using it.
      path = /var/run/dovecot/auth-client
      mode = 0666
    }
  }
################################################################################

Example configuration of apache2 server can be found in "example.conf" file
in same directory. Currently there is possibility to chain it with other
authentication mechanisms but that will / should be discussed anyway.

################################################################################
<Directory "/srv/www/htdocs">
	AuthType Basic
	AuthName "My dovecot authenticated place"
	AuthBasicProvider dovecot
	AuthDovecotAuthSocket /var/run/dovecot/auth-client
	AuthDovecotTimeout 5
	AuthDovecotAuthoritative On
	Require valid-user
	Options Indexes FollowSymLinks
	AllowOverride AuthConfig
	Order allow,deny
	Allow from all
</Directory>
################################################################################