changing tls:// to ssl:// did not seem to have any effect:

Nov 22 15:02:44 mail roundcube[19803]: <tvjhpfgd> [2] SELECT * FROM "users" WHERE "user_id" = '2';
Nov 22 15:02:44 mail roundcube[19803]: <tvjhpfgd> PHP Error: Connection refused (GET /index.php?_task=settings&_action=plugin.managesieve-forward)
Nov 22 15:02:44 mail roundcube[19803]: <tvjhpfgd> PHP Error: Unable to connect to managesieve on domain.com:4190 in /usr/local/www/roundcube/plugins/managesieve/lib/Roundcube/rcube_sieve_engine.php on line 221 (GET /index.php?_task=settings&_action=plugin.managesieve-forward)

On 2022-11-22 14:54, hi@zakaria.website wrote:

Change tl s:// to s sl://, it might work.

If didnt, RC dropped ss l support at some point and later returned it in master 1.6.

My recommendation it is upgrade to latest RC or refer to the managesieve s sl recent commit and apply the changes manually.

Zakaria.