Just wanted to know if there is anyway we can install Roundcube for our email service and this wont affect anything in the Panel?
Currently you can install it yourself, it will not affect the panel, I will write an installation tutorial for it later
make it default in next update
so users can acess webmail mail via webmail.domain.com
This will be a great idea... to make it defaul, Jay!
Deployment tutorial is here