[19-Nov-2008 12:24:55] Invalid response code received from server (501): 

[19-Nov-2008 12:24:55 +0100] SMTP Error: SMTP error: Failed to set sender 'mylogin@mail.mydomain.com' in D:\ROOT_WWW\WWW\webmail\roundcube\program\steps\mail\func.inc on line 1184 (POST /index.php?_task=mail&_action=send)

<?php

$rcmail_config = array();

// system error reporting: 1 = log; 2 = report (not implemented yet), 4 = show, 8 = trace
$rcmail_config['debug_level'] = 1;

// log driver:  'syslog' or 'file'.
$rcmail_config['log_driver'] = 'file';

// Syslog ident string to use, if using the 'syslog' log driver.
$rcmail_config['syslog_id'] = 'roundcube';

// Syslog facility to use, if using the 'syslog' log driver.
// For possible values see installer or http://php.net/manual/en/function.openlog.php
$rcmail_config['syslog_facility'] = LOG_USER;

// use this folder to store log files (must be writeable for apache user)
// This is used by the 'file' log driver.
$rcmail_config['log_dir'] = 'logs/';

// use this folder to store temp files (must be writeable for apache user)
$rcmail_config['temp_dir'] = 'temp/';

// enable caching of messages and mailbox data in the local database.
// this is recommended if the IMAP server does not run on the same machine
$rcmail_config['enable_caching'] = TRUE;

// lifetime of message cache
// possible units: s, m, h, d, w
$rcmail_config['message_cache_lifetime'] = '10d';

// automatically create a new RoundCube user when log-in the first time.
// a new user will be created once the IMAP login succeeds.
// set to false if only registered users can use this service
$rcmail_config['auto_create_user'] = TRUE;

// the mail host chosen to perform the log-in
// leave blank to show a textbox at login, give a list of hosts
// to display a pulldown menu or set one host as string.
// To use SSL connection, enter ssl://hostname:993
$rcmail_config['default_host'] = 'mail.mydomain.com';

// TCP port used for IMAP connections
$rcmail_config['default_port'] = 143;

// IMAP auth type. Can be "auth" (CRAM-MD5), "plain" (PLAIN) or "check" to auto detect.
// Optional, defaults to "check"
$rcmail_config['imap_auth_type'] = 'check';

// Automatically add this domain to user names for login
// Only for IMAP servers that require full e-mail addresses for login
// Specify an array with 'host' => 'domain' values to support multiple hosts
$rcmail_config['username_domain'] = '';

// This domain will be used to form e-mail addresses of new users
// Specify an array with 'host' => 'domain' values to support multiple hosts
$rcmail_config['mail_domain'] = '';

// Path to a virtuser table file to resolve user names and e-mail addresses
$rcmail_config['virtuser_file'] = '';

// Query to resolve user names and e-mail addresses from the database
// %u will be replaced with the current username for login.
// The query should select the user's e-mail address as first col
$rcmail_config['virtuser_query'] = '';

// use this host for sending mails.
// to use SSL connection, set ssl://smtp.host.com
// if left blank, the PHP mail() function is used
$rcmail_config['smtp_server'] = 'mail.mydomain.com';

// SMTP port (default is 25; 465 for SSL)
$rcmail_config['smtp_port'] = 25;

// SMTP username (if required) if you use %u as the username RoundCube
// will use the current username for login
$rcmail_config['smtp_user'] = 'system';

// SMTP password (if required) if you use %p as the password RoundCube
// will use the current user's password for login
$rcmail_config['smtp_pass'] = 'sesame';

// SMTP AUTH type (DIGEST-MD5, CRAM-MD5, LOGIN, PLAIN or empty to use
// best server supported one)
$rcmail_config['smtp_auth_type'] = '';

// SMTP HELO host 
// Hostname to give to the remote server for SMTP 'HELO' or 'EHLO' messages 
// Leave this blank and you will get the server variable 'server_name' or 
// localhost if that isn't defined. 
$rcmail_config['smtp_helo_host'] = 'localhost';

// Log sent messages
$rcmail_config['smtp_log'] = TRUE;

// how many seconds must pass between emails sent by a user
$rcmail_config['sendmail_delay'] = 0;

// these cols are shown in the message list
// available cols are: subject, from, to, cc, replyto, date, size, encoding, flag
$rcmail_config['list_cols'] = array('subject', 'from', 'date', 'size', 'flag');

// includes should be interpreted as PHP files
$rcmail_config['skin_include_php'] = FALSE;

// session lifetime in minutes
$rcmail_config['session_lifetime'] = 10;

// check client IP in session athorization
$rcmail_config['ip_check'] = false;

// Use an additional frequently changing cookie to athenticate user sessions.
// There have been problems reported with this feature.
$rcmail_config['double_auth'] = false;

// this key is used to encrypt the users imap password which is stored
// in the session record (and the client cookie if remember password is enabled).
// please provide a string of exactly 24 chars.
$rcmail_config['des_key'] = '?uL&8oqTtjkG*LR5z4xbyFJU';

// the default locale setting (leave empty for auto-detection)
// RFC1766 formatted language name like en_US, de_DE, de_CH, fr_FR, pt_BR
$rcmail_config['language'] = 'fr_FR';

// use this format for short date display
$rcmail_config['date_short'] = 'D H:i';

// use this format for detailed date/time formatting
$rcmail_config['date_long'] = 'd.m.Y H:i';

// use this format for today's date display
$rcmail_config['date_today'] = 'H:i';

// add this user-agent to message headers when sending
$rcmail_config['useragent'] = 'RoundCube Webmail/0.2-beta';

// use this name to compose page titles
$rcmail_config['product_name'] = 'RoundCube Webmail';

// only list folders within this path
$rcmail_config['imap_root'] = '';

// store draft message is this mailbox
// leave blank if draft messages should not be stored
$rcmail_config['drafts_mbox'] = 'Drafts';

// store spam messages in this mailbox
$rcmail_config['junk_mbox'] = 'Junk';

// store sent message is this mailbox
// leave blank if sent messages should not be stored
$rcmail_config['sent_mbox'] = 'Sent';

// move messages to this folder when deleting them
// leave blank if they should be deleted directly
$rcmail_config['trash_mbox'] = 'Trash';

// display these folders separately in the mailbox list.
// these folders will also be displayed with localized names
$rcmail_config['default_imap_folders'] = array('INBOX', 'Drafts', 'Sent', 'Junk', 'Trash');
(...)

?>