01.
Open Apple MAil Settings
Open Apple Mail
Click on Mail (upper left corner)
Select Settings from the drop down menu

02.
Open Account Settings
On the new window, click the Accounts tab
Select your account
Click on the Server Settings tab

03.
Edit Incoming and Outgoing Settings
Find Host Name and in the Incoming Mail Server (POP/IMAP) and Outgoing Mail Server (SMTP) settings and change jupiter.hostmother.com to
cpanel.pccc.com
Confirm that the change has been made to both incoming and outgoing settings.
Click Save to submit changes and begin verification process.

04.
Verify Server Settings
After clicking Save, Apple Mail will verify the settings. Once completed successfully your mail should resume as normal.
