Hi, I found this GitHub thread on the topic, which claims the feature was already added in 2021:
https://github.com/roundcube/roundcubemail/issues/5493
https://github.com/roundcube/roundcubemail/commit/d7338a42033be12185614dc799c19aabeb00df4d
I use Roundcube as the default to access my Synology email server, where I can't find this option anywhere in the settings. So I was wondering if I just don't find it, or if there's another reason why the feature implemented above would not appear in the Roundcube offered for Synology?
Thanks for any hints
The setting is under Settings -> Preferences -> Server Settings -> Clear Trash on logout.