Open Rate Info
Measuring open rate requires that a tracking image be included in your (HTML) message. This is not done by default unless you include the proper image link in your default template. It *is* included in our default template, but if you create and use a different template, be sure to include the link below if you want to track open rates.
To track opens, include a link to this image in your HTML, thus:
<img src="http://www.cctomany.com/o/_ln_/_up_/_dp_/_su_/">
When installed properly, this image will appear as three small gray dots. Then when your newsletter is delivered, each link will be converted to a unique code linked to that mailing & subscriber.
On the Metrics screen, scroll down and click Tips for more information.