If your using Mail App by Apple. Please follow these guides to add your custom email account.

1. Open Mail App
2. Go to Mail Tab and Add Account (Mail > Add Account)
3. Choose "Other Mail Account.." in Mail Account Provider
4. Login your Email Account Setting (Name, Email Address and Password)
5. If error exist. Please ensure the correct username and password of your account.
6. Provide the ff. info, for Incoming Mail Server and Outgoing Mail Server without a quote "webpluspixels.com"

For SSL Connection (Recommended)
IMAP: webpluspixels.com
POP: webpluspixels.com
SMTP: webpluspixels.com