We have Horde mail as webmail running in our dedicated domain running in a dedicated server that uses Linux CENTOS 6.7 x86_64 kvm – server WHM 11.50.0 (build 29). We need to customize the following:
1) Select and install a nice interface theme and style for Horde webmail.
2) Design a Login screeen with our logo and include a Recaptcha as a security login
3) Provide the code and clear instructions on how to install the new interface, in a way that when WHM or Horde are updated, the new interface will not be deleted.