[horde] Webmail server from my project.

[Ioan Chis]

Hello,

My post its from a project that I would like to use Horde webmail.
my questions is: 

I can customise Horde from my websites, to have my webserver name at browser and my logo in place of Horde?
How many users we can register on Horde (with my website name email address), it's this number limited?
Can use their own customizationto be integrated into our website?

Best regards
Ioan