I realise it is NOT possible to use Analytics to track newsletter open rate. Because:
- To track if an email is opened, you put an invisible image into the email with img src calling a tracking program.
So, in order to track newsletter open rate, you must point img src to a server-side tracking program. Analytics won’t fit for this job because it is client-side script.
Actually, tracking newsletter open rate is very easy with phpList, which I have been using for long. Simply to [USERTRACK] into the body of the email.