First of all, define the list of communication options to be used for email sending. You can define SMTP servers, SMS (SMPP servers) or additional Clickatell Sms Gateway. Use edit menu and select “Modify Shared Web Part”.
Use create “New Communication Settings”. Now you must select one of three possible communication types: SMTP, SMS, Clickatell or OMS. To add communication type, click “Create New Communications Settings”.