Enhance CP has two Roundcube instances:
- roundcub1 (name may vary) - Global instance at a single webmail domain
- roundcubelocal - Custom instance at
mail.<domain> for each website
Repeat these steps for each instance.
Find Config Files
find /var/www -path "*/config/config.inc.php" 2>/dev/null
find /var/www -path "*/plugins/managesieve/config.inc.php" 2>/dev/null
Example output:
/var/www/<uuid>/public_html/config/config.inc.php
/var/www/<uuid>/public_html/config/config.inc.php
/var/www/<uuid>/public_html/plugins/managesieve/config.inc.php
/var/www/<uuid>/public_html/plugins/managesieve/config.inc.php
Step 1: Find the Container IP
su - roundcubelocal -s /bin/bash -c 'ip addr show eth0 | grep inet'
The host IP is the container IP minus 1.
Example: Container 10.169.0.11 → Host 10.169.0.10
Step 2: Allow Traffic in UFW
ufw allow from <container_ip>
Step 3: Enable the Plugin
Edit config/config.inc.php:
$config['plugins'] = ['password', 'managesieve'];
Step 4: Configure Managesieve
Create plugins/managesieve/config.inc.php:
<?php
$config['managesieve_host'] = 'tls://<host_ip>';
$config['managesieve_conn_options'] = array(
'ssl' => array(
'verify_peer' => false,
'verify_peer_name' => false,
),
);
