Story:
Today I encounter a problem in Roundcube. I wanted to make an Spam Assassin rule using the Roundcube webmail for a certain account. I fowllow Settings + Junk + Address rules. I entered the rule and everyting was OK. I logout and login using other mail account to follow thesame path when I notice that "Junk setting" was not available ( it does not exists in the menu) for this account. Same server, same domain.
Info:
OS: Ubuntu 14.04 LTS
I-mscp version: 1.3.0
SpamAssassin Plugin version: 1.1.0
Roundcube Plugins: 1.2.4
Other plugins used: ClamAV, OpenDkim.
This is all information I got in this moment, following the rules. If you need more I'll be happy to provide them.
Hope it helps.