[RCU] Issues trying to use http://lists.roundcube.net/mailman/options/users

Hi,

I'm trying to change my subscription options. I can log in. However, if I try to change anything or unsubscribe, I get a "403 Forbidden" error page which says "You don't have permission to access /mailman/options/users/kaz@kylheku.com on this server."

To get out of this state, I have to manually remove the lists.roundcube.net session cookie.

Also, I noticed something else: if I switch to HTTPS, I get some outdated redirect. That is to say:

 https://lists.roundcube.net/mailman/options/users

redirects to

 https://issues.kolab.org/mailman/options/users

which doesn't exist.