Postfix+Dovecot+Mysql+Postfixadmin+Squirelmail

<?php
/**
 * SquirrelMail Configuration File
 * Created using the configure script, conf.pl
 */
global $version;
$config_version = '1.4.0';
$config_use_color = 2;
$org_name      = "ORG";
$org_logo      = SM_PATH . 'images/sm_logo.png';
$org_logo_width  = '308';
$org_logo_height = '111';
$org_title     = "SquirrelMail $version";
$signout_page  = '';
$frame_top     = '_top';
$provider_uri     = 'http://squirrelmail.org/';
$provider_name     = 'SquirrelMail';
$motd = "";
$squirrelmail_default_language = 'ru_RU';
$default_charset       = 'koi8-r';
$lossy_encoding        = false;
$domain                 = 'mail.xxx.org.ua';
$imapServerAddress      = 'localhost';
$imapPort               = 143;
$useSendmail            = false;
$smtpServerAddress      = 'localhost';
$smtpPort               = 25;
$sendmail_path          = '/usr/sbin/sendmail';
$sendmail_args          = '-i -t';
$pop_before_smtp        = false;
$pop_before_smtp_host   = '';
$imap_server_type       = 'dovecot';
$invert_time            = false;
$optional_delimiter     = 'detect';
$encode_header_key      = '';
$default_folder_prefix          = '';
$trash_folder                   = 'INBOX.Trash';
$sent_folder                    = 'INBOX.Sent';
$draft_folder                   = 'INBOX.Drafts';
$default_move_to_trash          = true;
$default_move_to_sent           = true;
$default_save_as_draft          = true;
$show_prefix_option             = false;
$list_special_folders_first     = true;
$use_special_folder_color       = true;
$auto_expunge                   = true;
$default_sub_of_inbox           = true;
$show_contain_subfolders_option = false;
$default_unseen_notify          = 2;
$default_unseen_type            = 1;
$auto_create_special            = true;
$delete_folder                  = false;
$noselect_fix_enable            = false;
$data_dir                 = '/var/spool/squirrelmail/pref/';
$attachment_dir           = '/var/spool/squirrelmail/attach/';
$dir_hash_level           = 0;
$default_left_size        = '150';
$force_username_lowercase = false;
$default_use_priority     = true;
$hide_sm_attributions     = false;
$default_use_mdn          = true;
$edit_identity            = true;
$edit_name                = true;
$hide_auth_header         = false;
$allow_thread_sort        = false;
$allow_server_sort        = false;
$allow_charset_search     = true;
$uid_support              = true;
$theme_css = '';
$theme_default = 0;
$theme[0]['PATH'] = SM_PATH . 'themes/default_theme.php';
$theme[0]['NAME'] = 'Default';
..... темы....
$default_use_javascript_addr_book = false;
$abook_global_file = '';
$abook_global_file_writeable = false;
$abook_global_file_listing = true;
$abook_file_line_length = 2048;
$addrbook_dsn = '';
$addrbook_table = 'address';
$prefs_dsn = '';
$prefs_table = 'userprefs';
$prefs_user_field = 'user';
$prefs_key_field = 'prefkey';
$prefs_val_field = 'prefval';
$addrbook_global_dsn = '';
$addrbook_global_table = 'global_abook';
$addrbook_global_writeable = false;
$addrbook_global_listing = false;
$no_list_for_subscribe = false;
$smtp_auth_mech = 'none';
$imap_auth_mech = 'login';
$smtp_sitewide_user = '';
$smtp_sitewide_pass = '';
$use_imap_tls = true;
$use_smtp_tls = false;
$session_name = 'SQMSESSID';
$only_secure_cookies     = true;
$disable_security_tokens = false;
$check_referrer          = '';
$config_location_base    = '';
@include SM_PATH . 'config/config_local.php';

SquirrelMail configtest
This script will try to check some aspects of your SquirrelMail configuration and point you to errors whereever it can find them. You need to go run conf.pl in the config/ directory first before you run this script.
SquirrelMail version:    1.4.21
Config file version:    1.4.0
Config file last modified:    28 August 2011 22:37:06
Checking PHP configuration...
    PHP version 5.2.17 OK.
    Running as www(80) / www(80)
    display_errors:
    error_reporting: 6143
    variables_order OK: GPCS.
    PHP extensions OK. Dynamic loading is enabled.
Checking paths...
    Data dir OK.
    Attachment dir OK.
    Plugins are not enabled in config.
    Themes OK.
    Default language OK.
    Base URL detected as: http://mail.xxx.org.ua/src (location base autodetected)
Checking outgoing mail service....
    SMTP server OK (220 mail.xxx.org.ua ESMTP Postfix)
Checking IMAP service....
    ERROR: Error connecting to IMAP server "localhost:143".Server error: (0)