How to get SMTP Credentials from cPanel ?
Once you have opened the cPanel web interface find the Mail section.
Click Email Accounts.
From the list of email accounts locate the email account you require the server settings for. Click More followed by Configure Email Client.
You will be presented with links to automatically configure the Apple Mac Mail.app, along with Manual Settings for other email clients.
The information under the heading Manual Settings is the information you require to configure your email client, in addition to the password you entered when creating the email account. If you have forgotten this return to the previous screen to change the password.