diff --git a/docker/roundcube/rootfs/opt/app-root/src/roundcubemail-config-templates/managesieve.inc.php b/docker/roundcube/rootfs/opt/app-root/src/roundcubemail-config-templates/managesieve.inc.php
index 4daa3757..4484cefa 100644
--- a/docker/roundcube/rootfs/opt/app-root/src/roundcubemail-config-templates/managesieve.inc.php
+++ b/docker/roundcube/rootfs/opt/app-root/src/roundcubemail-config-templates/managesieve.inc.php
@@ -1,22 +1,22 @@
 <?php
     $config['managesieve_port'] = 4190;
-    $config['managesieve_host'] = 'imap';
+    $config['managesieve_host'] = str_replace("ssl://", "", getenv('IMAP_HOST'));
     $config['managesieve_auth_type'] = 'PLAIN';
     $config['managesieve_auth_cid'] = null;
     $config['managesieve_auth_pw'] = null;
     $config['managesieve_usetls'] = false;
     $config['managesieve_default'] = '/etc/dovecot/sieve/global';
     $config['managesieve_mbox_encoding'] = 'UTF-8';
     $config['managesieve_replace_delimiter'] = '';
     $config['managesieve_disabled_extensions'] = array();
     $config['managesieve_debug'] = false;
     $config['managesieve_vacation'] = 1;
 
     $config['managesieve_filename_extension'] = '';
     $config['managesieve_kolab_master'] = true;
 
     if (file_exists(RCUBE_CONFIG_DIR . '/' . $_SERVER["HTTP_HOST"] . '/' . basename(__FILE__))) {
         include_once(RCUBE_CONFIG_DIR . '/' . $_SERVER["HTTP_HOST"] . '/' . basename(__FILE__));
     }
 
 ?>