Hi
Im going to create an email provider .
The guys buy there plans and can create a account and login.
For webmail client i am going to use roundcube with skin made by me and enigma plugin.
I need to pay? What restrictions i am going to have ?
(Ps -roundcube is going to be hosted in my servers)
Thanks
No, you don't need to pay.
Roundcube is released under GNU GPLv3 (https://www.gnu.org/licenses/gpl-3.0.en.html). A quick summary of what that means can be found on the tl;dr legal website (https://tldrlegal.com/license/gnu-general-public-license-v3-(gpl-3)).