On this URL https://github.com/roundcube/roundcubemail/blob/master/config/defaults.inc.php on line 953 it seems to suggest that you can configure (the Cloudron) LDAP to use as a Organization Adresslist (hopefully read only)?
Has anyone experience with this or knows how to configure it as this would be extremely useful to lookup and email colleagues?
I read that file quickly, indeed it seems it can pull in email addresses from LDAP.
I agree this looks quite useful to have! I will open a bug to investigate - https://git.cloudron.io/cloudron/roundcube-app/-/issues/3 . I think this might need change to our LDAP directory first to make the username <-> concrete mailbox work well, have to investigate.