1. Postal ballot allows shareholders to vote by post or electronically on resolutions instead of voting in person at shareholder meetings. 2. Public limited companies listed on stock exchanges must use postal ballots for certain types of important resolutions affecting shareholder rights. 3. The process involves appointing scrutinizers, sending shareholders a notice of resolutions with explanations, collecting votes, allowing the scrutinizers to submit a report on the results, and having the chairman declare the final outcome.