Hardening/libcurl

**DON'T MERGE**

Orion uses libcurl to send HTTP requests.
Re-thikning on this... it is not only a matter of adjusting the notification text. We should ensure that the "Notification Successfully Sent" INFO message is not printed (in the caller to this function?) in the case it was a connection error.

Could you analize the function flow logic in order to see if this can happens, please? Once we know the situation, we can know if the current approach is valid or the needed modificaiton to achieve it.