I am using Marketo to send e-mails. Within these e-mails I am using font awesome to create the social media icons. However it is not appearing in the e-mail when it is sent.
To import the font I am using the following:
<link href="http://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.0.3/css/font-awesome.min.css" rel="stylesheet">
The best practice is to avoid using external stylesheets, as most email clients will block them. That said, you are on the right track. Here's how to do this:
Load the external stylesheet.
<link href='http://fonts.googleapis.com/css?family=Lato:400,700' rel='stylesheet' type='text/css'>
Reference the font-family in your CSS.
h1 { font-family: 'Lato', sans-serif; font-weight: 400; }