Rafael on "[Plugin: Subscribe2] Sending more than once the same message"

Hello I'm testing the plugin and I'm some doubts when I click on send I get the same message 4 times. This is normal?

Each of these messages that I get comes with different formatting see:

http://c2n.me/3xmivov

http://clip2net.com/s/3xmizSw

http://clip2net.com/s/3xmiFF1

Because a message the plugin sends several times with different formatting? How do I set to send only 1 time with a type of formatting?

Another doubt, the plugin has integration with the shipping platform banckmark and plugin juice me?

THANK YOU.

https://wordpress.org/plugins/subscribe2/