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.