Install

安裝時會遇到 pear 問題

Auth_SASL:  NOT OK
Net_SMTP:  NOT OK
Mail_mime:  NOT OK

Fix

pear install Mail_Mime

pear install Net_SMTP

Plugin: managesieve

... PHP Fatal error:  Uncaught Error: Class 'Net_Sieve' not found in
 /var/www/roundcubemail-1.3.17/plugins/managesieve/lib/Roundcube/rcube_sieve.php:67

pear install net_sieve

// memcache

$config['imap_cache'] = 'memcache';
$config['memcache_hosts'] = array('localhost:11211');
$config['imap_cache_ttl'] = '14d';

// session in memcache

$config['session_storage'] = 'memcache';
$config['session_lifetime'] = 7200;