Q1 Single choice Flag What is the purpose of the "SMTP Authentication" setting in the email configuration of Avaya IP Office? A It disables email communication between IP Office and the SMTP server. B It enables email communication between IP Office and the SMTP server without requiring login credentials. C It encrypts email communication between IP Office and the SMTP server using SSL/TLS. D It requires login credentials to be entered for email communication between IP Office and the SMTP server. Correct answer