We have sent invoices to clients by email however at times realized the invoices were not being sent. It seems that we have to have our email program open in order for these invoices to be sent. Therefore if we forget to open our email program the invoices do not go to the customers however it looks like they do and we sometimes do not pick it up for possibly 30 days or more. Is there a setting we need to make to get around having to have the email program open?