Hello. I have installed ispconfig but I didn't installed rouncdube because I was dumb and thought I won't need it but now I need it and it doesn't seem to work. I managed to install roundcube but uppon login on mail server it says Connection to IMAP server failed. How can I possibly fix this issue? I think its related with postfix and dovecot, I tried all kinds of tutorials and think that I screwd configuration at the end so I uninstalled it and installed it again. Thank you.
Try this tutorial. Maybe it'll work for you. https://www.howtoforge.com/tutorial...4-jessie-apache-bind-dovecot-ispconfig-3-1/3/
A quick google search (or linked to in the jessie tutorial) finds: https://www.howtoforge.com/using-roundcube-webmail-with-ispconfig-3-on-debian-wheezy-apache2 Or if you're using nginx: https://www.howtoforge.com/using-roundcube-webmail-with-ispconfig-3-on-debian-wheezy-nginx