You may see how many of your members opened your HTML or multipart message if you enable opens tracking when you create your mailing. You may also detect who has HTML capability at the same time.
ListManager is able to detect opens and HTML capability by inserting a 1x1 invisible gif in the HTML portion of your message. When a recipient opens the message, ListManager can register that they did so and that they have HTML capability. If a user can only read text, or if their email client or ISP prevents gif files from being retrieved automatically, you will not be able to detect opens for that user.
Note that if you create a text body only and select this tracking, your mailing will be sent in multipart alternative, meaning a text and HTML body will be sent. Otherwise, opens and HTML capability could not be tracked. If you dislike the appearance of the automatically generated HTML, create an HTML section for your mailing.
1. Create a new mailing, but before saving your message, click on the TrackingTab.
2. Select yes for Track Opens to track how many people open your message. If opens are tracked, forwards will be automatically tracked as well.
3. Select yes for Detect HTML Capability to track whether recipients can receive HTML.
4. Continue composing your message. When you're done, click Save or Save and Test.
*Note: When Opens tracking is enabled, you can automatically track forwards for any emails which were opened and then forwarded to another email address. This can be viewed in ListManager's reports section. For more information, see Reports: Mailing Reports: Tracking Statistics.