We have tracking in our emails to track clicks back to our site through Google Analytics. But is there a way to track opens? I would imagine I have to add a google tracking image to the email somewhere. Possibly javascript too?
As others have pointed out, you can't use Javascript in email. The actual tracking is done by a request for __utm.gif
though and the Javascript just constructs the GET parameters.
Google supports non-Javascript uses of Google Analytics per their Mobile web docs: http://code.google.com/mobile/analytics/docs/web/
They document the full list of parameters, but the only necessary parameters are:
Parameter Description
utmac Google Analytics account ID
utmn Random ID to prevent the browser from caching the returned image
utmp Relative path of the page to be tracked
utmr Complete referral URL