create a hyperlink in email body to a location on the local network

Using the this.mailDoc function, in the body I want to create a link that goes to a file share on one of our servers. How do I create a link that is "clickable" (like links should be). I understand that any text within the body " " will be interpreted as just text and will not turn into a link...
 
Basically I want there to be text explaining what the link does and then have the link below the text like:
 
"Please click the link below to view the file \n\n \\SERVER\SHARE\FILE.EXTENSION"
 
Thanks!