Roundcube是支持SMTP，只是使用了Webmail后，默认关闭了而已，我们只需要自己打开即可， 打开的方法很简单。

修改配置文件：/etc/roundcubemail/main.inc.php

修改SMTP相关信息如下

[code lang=”php”]

// ———————————-

// SMTP

// ———————————-

// SMTP server host (for sending mails).

// To use SSL/TLS connection, enter hostname with prefix ssl:// or tls://

// If left blank, the PHP mail() function is used

// Supported replacement variables:

// %h – user’s IMAP hostname

// %n – http hostname ($_SERVER[‘SERVER_NAME’])

// %d – domain (http hostname without the first part)

// %z – IMAP domain (IMAP hostname without the first part)

// For example %n = mail.domain.tld, %d = domain.tld

$rcmail_config[‘smtp_server’] = ‘%d’;

// SMTP port (default is 25; use 587 for STARTTLS or 465 for the

// deprecated SSL over SMTP (aka SMTPS))

$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’] = ‘%u’;

// 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’] = ‘%p’;

// SMTP AUTH type (DIGEST-MD5, CRAM-MD5, LOGIN, PLAIN or empty to use

// best server supported one)

$rcmail_config[‘smtp_auth_type’] = ‘LOGIN’;

// Optional SMTP authentication identifier to be used as authorization proxy

$rcmail_config[‘smtp_auth_cid’] = null;

// Optional SMTP authentication password to be used for smtp_auth_cid

$rcmail_config[‘smtp_auth_pw’] = null;

// 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’] = ‘HELO’;

// SMTP connection timeout, in seconds. Default: 0 (no limit)

$rcmail_config[‘smtp_timeout’] = 0;

[/code]