The total maximum number of threads in ZennoBox is 20.
To use 20 threads, you must create a template (project) on ZennoPoster Pro.
ZennoPoster Standard can use only 5 out of 20 templates.
ZennoPoster Lite – 1 out of 20.
The cost of a template is $ 10. However, if you purchase several templates at once to the same email, the cost of the 2nd and subsequent templates is$2.