Use IMAP to transfer emails between providers. You’ll need both inboxes added to a mail client like Outlook or Thunderbird.
- Configure both your Private Email and cPanel email accounts using IMAP
- Select all emails from the old inbox
- Drag & drop them into the cPanel inbox (folder sync may take time)
- Wait for full synchronization
Note: This requires both accounts to support IMAP. POP3 is not suitable for this.