I have just installed INC and I would like to use the different standard groups of Joomla (2.5.5) to send messages associated to a newsletter without using the subscribers of JINC
I have probably missed something.
Can somebody help me to do that?

The situation is in progress. I have imported manuely subscribers from Joomla's Users Table.
Now, it runs too much. When I send the message with going on after un error, it never stops. I had to cancel the "process".
It indicates the error 0035. Whatever, messages are sent.

Thanks in advance for a help.