You would like to allow users to access Gmail but block access to the URL chat category in SWG and also block the ability to use the chat functionality while logged in to Gmail.
In order to increase security, HTTPS is enabled by default to access Gmail (https://mail.google.com). The SSL-encrypted login also means that URLs accessed via this tunnel are hidden to SWG unless the HTTP/S proxy feature is used. The proxy feature is available on SWG 5.0.0.x or later.
To block Google Talk (Gtalk) but still enable Google Mail (Gmail) several steps need to be completed: