You have a Hub Transport server named Server1 that runs Exchange Server 2010. All Exchange users use IMAP4 to retrieve email.
You need to ensure that all users can send email using SMTP. Your solution must not require any modifications to the default connectors.
What should you do?
A.
Configure IMAP4 clients to send email using TCP port 25.
B.
Configure IMAP4 clients to send email using TCP port 587.
C.
Create a new Send connector and configure the connector to use port 110.
D.
Create a new Send connector and configure the connector to use port 143