In its default configuration, HotMail does not display clickable links. You can change this for all messages from all senders (not recommended), or for a single message for one time use, or for all messages from a sender you trust. The last two alternatives can be chosen by clicking on one of the following options at the top of your message screen. “Enable all message content (once)” means turning on clickable links and other live Internet content for one time use. “Never disable content from this sender” means that you trust this sender, and all messages from him will have clickable links and live Internet content.