You are a desktop support technician for your company.

A customer running Windows XP Home Edition and Microsoft Outlook Express reports that he can no longer send e-mail messages. You verify that he can successfully receive e-mail messages.

You need to ensure that the customer can both send and receive e-mail messages.

What information should you provide to the customer?

A.
the correct POP3 configuration

B.
the correct NNTP configuration

C.
the correct SMTP configuration

D.
the correct IMAP4 configuration