Sage Timeslips

I receive an error message when I try to Email a bill to clients. I have all boxes checked and then I tell it to email to clients, I make sure the client's name is checked & email is correct. I then receive a message that says "Sending emails was completed…

We want to send out bills via email and paper this month. Just to cover the transition to email billing. ebilling is all set up and ready to go, Some clients that opted out of receiving their bills via email. I'm guessing when we send out bills…