You cannot transfer PST emails directly into Zoho Mail because it does not support PST file imports. The easiest and most reliable solution is to use the MailsDaddy PST to Zoho Mail Migration Tool. It allows you to load your PST file, connect your Zoho Mail account, and migrate emails along with attachments and folder hierarchy securely. The tool preserves original formatting and metadata, supports bulk migration, and provides a preview option to verify emails before transfer, ensuring a smooth and hassle-free migration experience.