Joe, a user, sets up an IMAP connection on his smartphone to connect to webmail. Joe is able to view email, but he receives an error message when trying to send a message. When viewing the mail client’s configuration, Joe sees a valid SMTP server and port. Which of the following should Joe check NEXT to resolve the issue?
A. Configure the email account as a POP3 connection
B. Ensure the SSL/TLS option is being used
C. Check that the account password is still valid
D. Make sure the smartphone is not in airplane mode