Marketo does not decorate links in a text only email. If we did, it would look real ugly for your customers. Links after decoration are long.
With regards to opens, the way opens are tracked is by placing a 1x1 pixel image in each email. Whenever an email is opened this image phones home and we know the email has been opened. A text only email cant have this image by definition.
If your intent is send an email that looks text only but with tracking, you can do so by creating a very basic HTML template with no images. This way your customers/prospects get a very simple email and you get all the tracking.
I understand in theory how and why opens/clicks are not tracked with text emails, but when I run an email performance report it is showing opens. How does that work?
Are you sending an email with only a text part?
Have you actually wrapped links with [[square brackets]] so they are, in fact, rewritten and tracked?
Although you can't track clicks and opens one thing you can track is the web page activity report and the company web activity in the Analytics tab. I tested this recently by doing a text only campaign. I created a smart list for both reports and had the following criteria:
was sent email > email that you sent
web page visit > that's the website or landing page that your lead visited as a result of clicking a link from the email you sent.
Got some statistics from both reports.
AJ and Michelle, thanks! Some good ideas, and much appreciated.